Chickenpox - photos, symptoms and treatment for children at home. How chickenpox begins in children and the first signs of external manifestations

Almost every mother knows what chickenpox looks like. This disease is one of the most common childhood infections. The initial stage of chickenpox is characterized by specific rashes.

How does the initial stage of chickenpox manifest? photo

The initial stage of chickenpox (photo 2) appears after a long incubation period. For children it is 2 weeks, and for adults the period from infection to the first symptoms can last 21 days. Chickenpox, the incubation period of which is activated after airborne contact with a sick person, begins with catarrhal phenomena. They are similar to the symptoms respiratory infection. The only difference is the specific acne associated with chickenpox.

Acne with chickenpox photo

Exactly acne with chickenpox(photo 3) and are characteristic feature of this disease. The causative agent is one that enters the mucous membranes respiratory tract. The onset of chickenpox at this stage goes unnoticed by the patient. This is the period of reproduction and accumulation of the pathogen. After the virus penetrates the regional lymph nodes and circulatory system the initial stage of chickenpox appears.

What chickenpox looks like photo

The main symptom by which you can understand what does chickenpox look like(photo 4) is a rash. At first these are ordinary red spots, not big size and round shape. Early stage Chickenpox first appears on the head and abdomen. As a result, the spots turn into papules (this is what pimples with chickenpox are called). The center of the area of reddened skin rises, a bubble is formed, filled with clear liquid.

Chickenpox rash(photo in the gallery) subsequently transforms from a papule into a vesicle with purulent contents. Itching appears, which accompanies the process of opening acne. Next sign How chickenpox manifests itself is ulceration of the papule with the formation of a scab or other crust. But this happens at a later stage.

Chickenpox in mild form

Chickenpox, the initial stage of which is characterized by light current, occurs in children under 12 years of age. Incubation period in this case does not exceed two weeks. Chickenpox in mild form (photo 5) is most often not accompanied by an increase in temperature, and catarrhal symptoms are usually absent. What does chickenpox look like in such a case? Unlike the classic course of infection, in this case, elements of the rash can form on any part of the body or mucous membranes.

Chickenpox rash

The initial stage, even with a mild course, does not occur without rashes. They go through the same stages of development. However acne with chickenpox in this case they are not numerous, but they can be quite large. If the patient does not scratch the blisters, they quickly dry out and fall off without the addition of a secondary infection. Chickenpox in mild form is practically not accompanied by secondary rashes.

How does chickenpox start?

The initial stage of chickenpox (photo 6) is easily disguised as a common upper respiratory tract infection. At the end of the incubation period, the child begins to have a headache, often weakness and almost always a temperature that can rise to 40 degrees.

Sometimes initial stage of chickenpox proceeds practically without symptoms. The patient's body temperature does not increase. Possible weakness and small light headache. Catarrhal manifestations are minor or absent altogether. In this case, when it began, the parents do not even assume that the child is sick and has the initial stage of chickenpox. The child is coming to the children's group, and the infection spreads further.

The first signs of chickenpox

Catarrhal phenomena like first signs of chickenpox(photo 7) are observed during the first two days. At this stage, it is not possible to suspect an infection. Chickenpox is first diagnosed only when primary rashes appear. Only then will the doctor be able to say that the patient has chickenpox.

We discussed above what types of acne with chickenpox can occur and where they are located. It should be noted that the chickenpox rash does not clear up immediately, but goes away in waves. Each period of appearance of fresh papules is accompanied by severe intoxication and fever. In total, about ten days can pass from the moment chickenpox begins to the last rash.

Chicken pox is infection, caused by the varicella zoster virus, which belongs to the herpes family of viruses. Characterized by an increase in temperature, a rash with various elements (from spots to crusts), severe itching and catarrhal symptoms.

A feature of type 3 herpes virus is its volatility. In a poorly ventilated area, it can spread up to 20 m, and anyone who has not had chickenpox can become infected.

Chickenpox most often occurs in children under school age, but it is extremely rare in children under 6 months.

In newborn children chicken pox has extremely severe course. They are often diagnosed with atypical forms of chickenpox.

By age 6, 70% of children have antibodies to chickenpox and are immune for the rest of their lives.

After a person has chickenpox, they develop antibodies to the herpes virus type 3, and an immune response is formed to the re-introduction of the virus. But with immunodeficiency, shingles or a repeated case of chickenpox may develop, since the virus continues to “live” in the nerve ganglia and it is impossible to completely recover.

Shingles most often affects people with immunodeficiency. A feature of this disease is that the rash does not spread over the entire skin, but along the course of the nerve, for example, along the intercostal spaces or on the face along one of the branches of the facial or trigeminal nerve. This disease is unpleasant, its prodromal period is especially unpleasant; often the patient does not associate it with the manifestation of herpes infection.

A little history

Until the 18th century, chickenpox was not considered a independent disease, it was considered one of the manifestations smallpox. It was only at the beginning of the 20th century that the first descriptions of a virus - the causative agent of the disease - appeared in the contents of vesicles. And only in the 40s of the twentieth century a description of the chickenpox virus appeared.

How does chickenpox manifest in children? Course of the disease

Usually, after contact with a sick person, after 11–21 days (this is the incubation period of chickenpox), the first signs of chickenpox appear in a child. The long incubation period often causes a little confusion among parents.

It would seem that the meeting with the patient was a long time ago, and the threat of getting sick has already passed, and then the child begins to complain of body aches, chills appear, the temperature rises to 38 - 39 C, nasal discharge appears, the baby becomes lethargic and drowsy. Since a lot of time passes after contact with a patient, mothers cannot always understand that these are the first symptoms of chickenpox in children.

After a day or two, a rash appears. It is initially small-spotted or spotted. Children usually complain of itching, and children under four years of age may cry and act restless. Within a day, the spots turn into vesicles filled with serous contents. After a few days, the blisters open, and in their place crusts form on the skin. After the crust comes off, the wound heals completely, leaving no scars.

It should be noted that the rash appears (sprinkles) every 2 - 3 days for 3 - 7 days, therefore all the elements of the rash are different (polymorphic).

The child is contagious two days before the first signs of the disease appear, during the period of rashes and up to seven days from the moment of the last addition.

It should be noted that usually younger age child, the easier he tolerates the disease. It is easier for a 3-year-old child to survive this period than for an adult.

Symptoms of chickenpox in children

temperature above 38 °C. Please note that sometimes the temperature rises to 40˚C. This is not a complication of the disease, but only a feature of the reactivity of the immune system of a sick person. However, in some cases the temperature throughout the entire illness can be 37 °C;
The appearance of the rash varies in stages. Stages of the rash - spot-bubble-appearance of crusts. The rash appears on the child's entire body, except for the palms and feet. Chickenpox is also characterized by a rash on the scalp;
wave-like appearance of the rash, when after the appearance of the rash there is a short-term lull.

Other symptoms of the disease:

viral conjunctivitis. It usually appears when the herpes virus affects the first branch of the trigeminal nerve. When viral conjunctivitis appears, children may complain of discomfort in the eyes, they will say that it is unpleasant or painful for them to look at the light, tears flow from their eyes;
vulvovaginitis in girls;
stomatitis - the appearance of a rash on the mucous membranes of the mouth. If a rash appears in the child’s mouth, you should contact your doctor for further examination and possible change treatment tactics.

Swimming with chickenpox

Is it possible to bathe a child with chickenpox when he is sick? This question is especially acute.

Opinions on this issue, as always, differ.

You cannot take a bath, that is, lie for a long time and steam your body (to avoid infection of open wounds).
Do not use a sponge or washcloth. Do not rub the child’s body with anything or anything.
Be careful with soaps and shower gels. They dry out the skin and can increase irritation.
It is better if the child takes a shower.
After a shower, you need to blot the water with a soft towel. Under no circumstances should you rub your body.
After the skin has dried, the sores should be treated with brilliant green or fucorcin.

Features of caring for children with chickenpox

Children usually bring the infection from kindergarten and often infect younger brothers and sisters. Chickenpox in children is mild, and the most unpleasant thing is the rash, which is why these children are treated at home.

We will discuss how to treat chickenpox in children a little later, but for now let’s remember how to care for children with chickenpox:

diet. If a child refuses to eat, do not force it; it is better to eat a little, but more often. Increase the amount of fruits and vegetables in your diet;
drinking plenty of water. Fruit drinks, compotes, jelly and homemade freshly squeezed juices are recommended. If the child does not want to drink it, offer tea or water;
it is advisable to limit active games, trying to keep a child in bed is pointless;
try to explain that the sores cannot be scratched, the child’s nails must be cut short;
It is advisable to change bed linen every day, the child should sleep separately in his own bed;
The room in which the child is located must be washed every day and ventilated at least once an hour;
It is desirable that there are no other children around the sick child, but, alas, this is not always possible.

To walk or not to walk?

This is another question in caring for a child with chickenpox that worries parents: is it possible to walk with a child with chickenpox?

During the period when the child is contagious, walks are not recommended. But if the parents are sure that the baby will not have contact with anyone (for example, if you live in a private house), then you can go for a short walk.

Let's list important conditions for walks:

Body temperature should return to normal.
The last rash was 7 days ago. Otherwise, if you do go for a walk, there should be no other people on the street, especially children or pregnant women.
If a child has recently had chickenpox, he should not sunbathe or swim in open water.
The immune system of a child who has recovered from the disease is still weakened, so he is not recommended to have contact with sick children or unwell adults.

Prevention and vaccination

The chickenpox vaccine has been given to children in our country since 2008, but is still not included in the list. mandatory vaccinations, which means that parents themselves must decide for themselves whether to vaccinate their baby or not.

Vaccination is now recommended from the age of two. The vaccination is done once, provided that the child is under 13 years old, and twice for children over 13 and adults who have not yet been sick.

Vaccination is carried out with Varilrix or Okavax vaccines (they are live attenuated vaccines).

Vaccination takes place according to the following scheme:

"Okavax" - 0.5 ml (one dose) at a time for children over 12 months of age;
"Varilrix" - 0.5 ml (one dose) twice with an interval of 2 - 2.5 months.

Emergency prophylaxis is carried out with any of the above-mentioned drugs within 96 hours from the moment of contact with a sick person. In our country, such prevention is not common.

After administration of the drug, after 7 days, signs of chickenpox may appear in the child. This is a mild malaise, an increase in temperature to 38 ° C, and a mild rash may appear. All symptoms go away on their own within a few days. There is no need to treat them; they are not a complication of vaccination.

Another method of prevention is isolating sick children. True, this is ineffective, since children do not always prodromal period manifests itself clearly, and the child is contagious two days before the rash appears.

What can chickenpox be confused with?

At the beginning, before the rash appears, the disease is similar to the course of any viral disease, for example, influenza.

At the first signs of sleep, you can mistake chickenpox for an allergy or heat rash, but usually within 24 hours it becomes clear that the conclusion was made incorrectly.

Usually after the rash appears, everything becomes clear.

Complications of chickenpox

There are always exceptions, but more often they talk about rules. For example, when a pregnant woman who has not previously had chickenpox gets sick, she has a chance of losing her baby, or the baby may be born with chickenpox.

Children under the age of one year suffer from chickenpox extremely hard, and it occurs in them in an atypical form.

Another option is adults and teenagers. They also sometimes have complications, such as viral pneumonia, myocarditis or encephalitis.

Atypical forms of chickenpox

Rudimentary. The rash is spotty, there are practically no catarrhal symptoms, the disease passes easily.
Hemorrhagic form. The bubbles in this form are filled not with transparent, but with blood content. The course of the disease is severe, patients experience vomiting with blood, nosebleeds, and possible black stools. On the second day, petechial rashes appear (small pinpoint hemorrhages into the skin).
Bullous form. The bubbles in this form merge, forming so-called bullae. They are usually filled with muddy contents.
Gangrenous form. It has an extremely severe course.
Generalized form. With this form of the disease there is severe intoxication, damage internal organs, hyperthermia.

All atypical forms(except rudimentary) are treated in a hospital, often in intensive care units.

Treatment of chickenpox in children

If you see that your child is sick, call a doctor who will prescribe and monitor treatment. Each drug has its own subtleties and features. Incorrect treatment, just like him complete absence, can lead to complications during the course of the disease.

If the temperature rises above 38.5 °C, you can give the child antipyretic drug based on ibuprofen or paracetamol.
For decreasing skin itching can be used local ointments, such as Gerpevir, Acyclovir. It is possible to use Fenistil gel.
Can be used antihistamines. For example, the drug Diazolin, it is available in tablets.
To prevent secondary infection of ulcers, use brilliant green or Fukortsin. The application of such preparations also helps to determine the appearance of new bubbles.
For a sore throat, you can use herbal decoctions and medications approved for the treatment of children of a particular age.
Antiviral therapy is mandatory. It is prescribed by a doctor.

Dear mothers, I wish you not to be overwhelmed by the tears of your children, but to do this, be very attentive and patient towards them. Chickenpox is just a part of your child's life, and over time, only photos will remain that remind you of the green-spotted period.

If you know how chickenpox begins in a child or adult, you can notice the onset of the disease in time and take the necessary measures.

Features of chickenpox in children

Varicella (chickenpox) is a contagious disease of an infectious nature that differs acute course. This disease is considered to be a childhood disease, since the vast majority of cases of infection are registered in children of preschool and primary school age. However, if a person did not have chickenpox as a child, he or she may get it later in life. And while children, as a rule, have a mild form of the disease, adults often experience the disease extremely seriously, often with complications.

The disease is highly contagious and can be transmitted by airborne droplets through mucous membranes. It is not necessary to have contact with a sick person.

The incubation period ranges from 10 to 21 days. But the child poses a danger to other children precisely from the moment of infection. That is why an epidemic of chickenpox easily and quickly begins in kindergartens and schools.

After the first signs of the disease appear, the child is a carrier for a week, so quarantine is indicated for this period.

After the quarantine expires, the child does not pose a threat to the health of others, so he can again attend kindergarten or school.

At the same time, parents should understand that there is nothing wrong with their child contracting chickenpox. In childhood it is much easier to tolerate than in adolescence and older age.

Stages of disease development

Chickenpox goes through several stages of development:
Incubation. During this period, the patient does not yet know that he is already a carrier of the virus. The virus multiplies rapidly on the mucous membranes of the eyes and mouth. The duration of the period is 10-21 days. Premonitory. The virus enters the blood, resulting in intoxication of the body. On at this stage
It is difficult to accurately diagnose chickenpox rather than another infectious disease. The duration of the stage is from 1 to 2 days. Rash stage. The first ones appear external signs chicken pox - rash. She amazes skin covering and mucous membranes. This is due to the spread and reproduction of the virus on the cells of the outer integument. Average duration
— 3-10 days. Recovery. Start this period takes since the appearance of the last skin rashes

. The blistering rash turns into crusts. Duration - 5 days. The duration of the disease varies for each patient, but in most cases it does not exceed 7-10 days with lung condition

proceed without complications. If there are complications, then the duration of the disease is, of course, longer. This picture is often observed in adult patients.

How does chickenpox start?

The disease can begin in different ways.

As a rule, the first signs of the disease include the following: Signs of intoxication. For initial stage
Chickenpox is characterized by increased temperature, fever, and decreased appetite. Pain syndrome. The patient may complain of headache, muscle or joint pain
. Such signs are more typical when an adult is infected. Dec. This is what is called a prodromal rash. This is not yet the rash that is characteristic of chickenpox. Resh looks like small dots

In some cases, the resh can be combined with a chickenpox blistering rash, but usually the resh disappears before the disease moves to a new stage of development.

The first signs of chickenpox may be:

general malaise;
runny nose.

For this reason, chickenpox at this stage is often confused with a common cold.

Chickenpox symptoms

Many parents associate the onset of chickenpox with the appearance of a rash. However, formally this is already the third stage of the development of the disease - the stage of the appearance of the rash.

After the first symptoms of chickenpox, a small red spot appears on the skin, which has an oblong shape. Over time, a bubble filled with transparent content appears in the center of this spot.

Then blistering rash begins to spread very quickly. First of all, it strikes scalp heads, and therefore is not always detected immediately. Then the rash appears on the body, genitals, mucous membranes (on the conjunctiva of the eyes), esophagus, throat, oral cavity.

There are 250-500 of these bubbles on a child's skin, called vesicles. They itch, itch and cause great discomfort to the child. All this may be accompanied by an increase in temperature, the child may cry or be capricious.

The problem is aggravated by the fact that the child tries to comb the bubbles, which is absolutely forbidden to do.

This continues acute period up to 5 days, although after 1-2 days the bubbles begin to dry out and become covered with a crust, which then disappears. But at the same time, new bubbles do not stop appearing. Thus, the child’s entire body is simultaneously covered with red spots, transparent bubbles and brown crusts.

As soon as parents notice the appearance of the first bubbles, they should call a doctor.

Complications of chickenpox in children

IN childhood in most cases, the disease is quite mild, with discomfort, but without complications. However, sometimes it can be severe, not only in adults, but also in small children.

Chickenpox usually occurs in severe form hemorrhagic in nature, is accompanied by a significant increase in body temperature, and the contents of the bubbles turn from transparent to brownish-brown.

This is a dangerous situation, since it is fraught with bleeding if such a rash has spread to internal organs:

if the nasal mucosa and upper respiratory tract are damaged, nosebleeds may occur;
if the stomach or esophagus is damaged, bloody vomiting may occur.

A patient in this condition must be hospitalized and treated as an inpatient.

Another complication is generalized chickenpox. It is characterized by damage to internal organs, including the brain. This is fraught with serious consequences, for example, chickenpox encephalitis. Children with weak immune systems are susceptible to such a severe course of the disease.

Finally, another complication is associated with poor quality or improper handling of the bubbles. If you do not pay due attention to this process, they can fester, resulting in scars on the skin. This consequence of chickenpox often occurs in adult patients. Modern cosmetology centers allow you to solve this problem with the help of laser resurfacing and other techniques.

Features of chickenpox in adults

In adults, chickenpox occurs with the same characteristic symptoms, as in children. The difference in the body's reaction to a virus attack: in adults it is much stronger than in children. In adults, the disease begins unexpectedly and very acutely. The following symptoms are typical:

severe weakness in the body;
aches;
feeling of nausea;
vomit;
Very heat(up to 40°).

All this is a signal of severe intoxication of the body.

Characteristic rashes appear on the body. They affect the skin of the shoulders, chest, abdomen, thighs and gradually spread to the skin of the face and scalp.

At first the rash looks like bumps small size having a red tint. But they very quickly move to another stage, taking shape transparent bubbles with a red base. They are called papules.

The blisters rupture randomly, turning into moist sores. After a few days, these vesicles become crusty.

The crusts last for 1-2 weeks, after which they fall off on their own.

Often in adult patients, rashes affect not only the skin, but also mucous membranes, for example, solid sky, oral cavity, cheeks, tongue, back wall pharynx, as well as genitals. In addition, they often enlarge and begin to hurt The lymph nodes on the neck and behind the ears.

Complications of chickenpox in adults

Unlike children, people who become ill during adolescence and older age often experience various types of illness. Doctors point out the main ones:

Cosmetic defect. For example, there may be potholes, pits, and scars on the skin.
Pneumonia. Teenagers with low immunity and women during pregnancy are more susceptible to it.
Damage to the organs of vision. A person may partially or completely lose vision, for example, as a result of optic neuritis.
Arthritis. Usually inflammatory process in the joints goes away as soon as the patient recovers from chickenpox itself.
Brain damage. For example, meningitis, encephalitis, cerebellar damage, etc.
Respiratory tract lesions. For example, tracheitis, laryngitis.
Lesions of the oral cavity. For example, acute stomatitis may develop.
Lesions of the genitals. In women, vulvitis may develop against the background of chickenpox; in men, an inflammatory process in the area foreskin or glans penis.

At the first signs of illness, you should immediately call a doctor.

The most commonly diagnosed infectious childhood disease is chickenpox. This is what people call the extremely contagious disease chickenpox. You can “catch” it at any age, but for the most part only children suffer from it.

Young mothers often do not know what the first symptoms of chickenpox are and miss the onset of the disease, putting the people around the baby at risk of infecting them. That is why it is very important to know the first signs of chickenpox in a child.

The child has

The causative agent of the disease is one of the types of herpes, which penetrates the human body through the mucous membranes of the nose, mouth and eyes. The disease is transmitted exclusively by airborne droplets, but infection occurs not only through direct contact with a sick person. Sometimes you can become infected by being in adjacent rooms to the room where a baby with chickenpox is located.

Children under 5 years of age are especially susceptible to chickenpox. Breasts located on natural feeding, along with mother's milk, they receive antibodies to the disease. That is why babies under one year of age are very rarely infected.

The incubation period for chickenpox is quite long and reaches 21 days. Most often, signs of chickenpox in children appear 14 days after infection. The course of the disease is quite unpleasant. The child's temperature may rise to quite high performance. The baby begins to complain of general malaise, headache. Sometimes the child experiences abdominal pain, as well as aching joints, characteristic of the onset of the flu. As a rule, he refuses to eat and becomes more moody.

Chicken pox in children, the symptoms of which we are considering, is always accompanied by characteristic rashes. Flat spots first appear on your baby's skin Pink colour, the size of a small pea. Rashes can form on any part of the body. In this case, the mucous membranes of the mouth and genitals are no exception.

In just a few hours, the rash turns into blisters filled with clear liquid. There is a small area of redness around each one. After about a couple of days, the papule dries out and becomes covered with a hard crust. It disappears after a couple of weeks, leaving no traces behind.

The disease is characterized by a wave-like course, i.e. chickenpox rashes recur periodically. Every few days new spots appear on the baby’s body. In this case, pink spots, bubbles, and crusts can be observed simultaneously.

It is necessary to ensure that the child does not scratch the blisters. Sometimes this can cause wounds to fester.

In adults

Chickenpox is very rare in adults. But sometimes a mature person can experience all the “delights” of this childhood infection. And if the child has not had chickenpox, then the immune system The body is unable to fight the invading virus. If infection has occurred, it is also worth remembering that chickenpox in an adult is much more severe than in a child.

The first signs in an adult

Chicken pox is not classified dangerous diseases, but in an adult it can cause many complications.

After reaching the age of twenty, the symptoms of the disease become more acute. The course of the disease can also be complicated by chronic diseases, which at this age are far from excluded. Others also influence the course of the disease immunodeficiency states body.

The latent period of the disease in an adult, as well as in a child, lasts no more than three weeks. Signs of chickenpox in an adult appear 24 hours before the first elements of a chickenpox rash appear on the body. These include:

malaise;
general weakness;
body temperature may be slightly elevated;
headache;
aching in all joints.

Relatively rare, but at the initial stage of the disease (before the rash appears), a person may experience the following symptoms:

photophobia;
convulsions;
lack of coordination.

Chickenpox in adults is accompanied by the following symptoms:

observed on the patient's skin great amount pink spots that turn into an itchy rash within a few hours;
the mucous membranes of the mouth, throat, upper respiratory tract and genital organs are almost always involved;
the appearance of the rash can last up to 10 days;
During the period of the appearance of new elements, body temperature rises to 40 degrees;
The disease is accompanied by severe intoxication.

The blisters itch very much, but they should not be damaged. In this case, the course of the disease may be complicated by a secondary bacterial infection.

Symptoms in teenagers

In the case of adolescents, infection can occur due to contact with a sick child. Incubation period in adolescence reduced to 17 days. Very rarely, the first signs may appear on the 22nd day after the virus has penetrated the mucous membrane.

It is during adolescence that the child begins to undergo a complete restructuring immune defense so he becomes more susceptible to various diseases. And if he did not have chickenpox in childhood, then after the child turns 14 years old, it is recommended to get vaccinated.

In adolescence, the symptoms of the disease are very similar to the manifestations of the disease in an adult. The child has a pronounced prodromal period. More than 24 hours later, he may begin to experience symptoms characteristic of a cold:

severe headache;
muscle aches;
there is a slight increase in temperature;
general intoxication.

After this, a characteristic rash appears on the body.

Teenagers with chickenpox are much more likely to experience wound suppuration. At this age, complications such as abscesses, fasciitis, pyoderma and phlegmon are much more common.

After the scabs fall off, there is a high probability of scar formation, as well as age spots. The disease in adolescents usually occurs in moderate to severe form.

Prevention

Is it possible to prevent the disease? Yes. The main measure to prevent infection is vaccination. This method has been practiced since 1995. Vaccination is recommended for people who did not have the disease in childhood, but had close contact with an infected person.

The vaccine can also be administered to babies who are already one year old. For prevention purposes this method It can also be advised to women planning pregnancy if they do not have immunity to the disease.

Preventing the spread of the disease is isolating the sick person. He must exclude all possible contacts throughout the entire period of the rash. Quarantine also includes the next 5 days after the last scab falls off.

A person must be isolated starting 11 days after contact with an infected person. The quarantine lasts up to 21 days and if a characteristic rash is not observed, then you can lead a normal life.

Treatment carried out during latent period(immunoglobulin vaccination) will help reduce the risk of severe disease. Sometimes it can help prevent the development of chickenpox completely.