Chickenpox is a common disease caused by the varicella virus. Chickenpox causes an itchy rash and red spots or blisters (pox) on the skin all over the body. You also can have blisters on the scalp and in the eye. But getting the chickenpox vaccine can lower your risk of getting this disease.
Chickenpox is most contagious from 2 to 3 days before the rash develops until no new blisters form and all the blisters have crusted over. That may be 7 days or more after the blisters first appear. It may take up to 2 weeks for the scabs to go away. Most healthy children need only home treatment for chickenpox. People who are older than age 12, are pregnant, or have a weak immune system may need medicine.
Chickenpox (varicella) is an illness that causes an itchy rash and red spots or blisters all over the body. The blisters burst and crust over after several days. Chickenpox is very contagious. People who are infected with the virus can spread it before they have any symptoms.
Chickenpox usually isn't serious in children. It can be more serious in newborns, teenagers, adults, pregnant women, and people who have a weakened immune system.
There is a vaccine that can prevent chickenpox.
Chickenpox (varicella) is a contagious illness that causes an itchy rash and red spots or blisters (pox) all over the body. It takes about 1 or 2 days for a chickenpox red spot (macule) to go through all of its stages. This includes blistering, bursting, drying, and crusting over. New red spots appear every day for up to 5 to 7 days.
Source: The U.S. Centers for Disease Control and Prevention (CDC).
| Chickenpox | Smallpox |
---|---|---|
How initial symptoms differ | 0 to 2 days of mild illness pass before the rash develops. | 2 to 3 days of severe illness pass before the rash develops. |
Lesions first appear on the face or trunk. | Lesions first appear in the throat or mouth, then on the face, or on the upper arms. | |
How the rash lesions differ | Lesions develop in successive fashion. While some are new, others are crusting over (in "crops"). | Lesions develop at the same time, and they look alike on any one section of the body, such as the abdomen, arms, or face. |
Lesions change rapidly, crusting over within 24 hours. | Lesions change slowly, scabbing over after 9 to 15 days. | |
Lesions sit on the skin surface and look like small blisters. | Lesions become firm, dome-shaped, and deep in the skin. | |
Rash rarely develops on palms and soles. | Rash commonly develops on palms of the hands and soles of the feet. | |
Lesions are most concentrated on the torso, with fewest on the hands and feet. Lesions can affect the face and scalp, but rarely affect the entire body equally. | Lesions are most concentrated on the face, hands, and feet. |
Treatment for chickenpox depends on your age, your health, how long it's been since you were exposed to the virus, and your symptoms.
Home treatment includes rest and medicines to reduce fever and itching. Read and follow all instructions on the label. Do not give aspirin to anyone younger than 20. It has been linked to Reye syndrome, a serious illness. Soaking in oatmeal baths also helps with itching.
Most healthy children need only home treatment for chickenpox. Healthy teens and adults with chickenpox often have more severe symptoms than children and are at higher risk for problems. If you are older than age 12, are pregnant, or have a weak immune system, your doctor may want to give you a medicine or vaccine that helps protect you from the virus.
People with long-term diseases or other health problems may need more treatment. They may need immunoglobulin treatment (IG) or antiviral medicine.
You can prevent chickenpox with the chickenpox vaccine. Children get this vaccine as part of their routine immunizations.
If you've never had chickenpox or the vaccine, you have no immunity against the virus. If you or your child isn't immune, you can prevent chickenpox by getting the vaccine.
The vaccine is recommended for:
You can help prevent chickenpox by avoiding close contact with people who are infected with the virus. This is even more important if you have a weak immune system.
If you've been in contact with a person who has chickenpox and aren't sure if you're immune, a shot of the vaccine may prevent the illness. Or it may make the illness milder.
If you can't have the chickenpox vaccine (for example, during pregnancy), a shot of antibodies (immunoglobulin) or an antiviral medicine may help prevent the chickenpox.
Your doctor will ask about symptoms and do an exam. A healthy child with chickenpox symptoms may not need to visit a doctor. You may be able to describe the symptoms to the doctor over the phone. Teens, adults, pregnant women, and people with health problems need to see a doctor for chickenpox.
Most healthy children need only home treatment. But all teens and adults with chickenpox need to see a doctor to help prevent serious problems. Using over-the-counter medicines, taking oatmeal baths, and applying cool compresses can help relieve symptoms such as fever and itching. Check with your doctor before you give medicine to your child.
Chickenpox can spread easily. You can get it from an infected person who sneezes, coughs, or shares food or drinks. You can also get it if you touch the fluid from a chickenpox blister.
A person who has chickenpox can spread the virus even before he or she has any symptoms. Chickenpox is most easily spread from 1 to 2 days before the rash appears until all the blisters have crusted over.
Chickenpox usually doesn't spread to people who have had the illness or the chickenpox vaccine.
After you've had chickenpox, you aren't likely to get it again. But the virus stays in your body long after you get over the illness. If the virus becomes active again, it can cause a painful viral infection called shingles, usually when you are an older adult.
Skin infection is the most common complication for children under age 5. An infection can form after the rash is scratched. Scratching allows bacteria from the skin or under the fingernails to get into a chickenpox blister. The infection can become serious if it isn't treated. An infected blister also may leave a scar.
Other complications may include pneumonia or encephalitis (inflammation in the brain). These complications are rare, but can be very serious.
Chickenpox during pregnancy can cause birth defects or serious newborn infection.
Chickenpox is caused by the varicella-zoster virus. It can spread easily. You can get it from an infected person who sneezes, coughs, or shares food or drinks. You can also get it if you touch the fluid from a chickenpox blister.
Chickenpox (varicella) is a contagious illness that causes an itchy rash and red spots or blisters (pox) all over the body. Chickenpox can cause problems for pregnant women, newborns, teens and adults, and people who have immune system problems that make it hard for the body to fight infection.
Chickenpox usually isn't a serious health problem in healthy children. But children who have chickenpox need to stay home from school so they don't spread it to others.
Home treatment methods can help reduce the itchiness of the chickenpox rash. Try the following suggestions to make you or your child more comfortable and keep scratching under control.
Take baths for 20 to 30 minutes as often as needed to stay clean and soothe your itchy skin. Always stay with young children when they are in a bathtub.
But talk to your doctor before using lotions that contain antihistamines. You could try lotions with:
You may accidentally apply too much medicine, which can be harmful. Ingredients to avoid include:
Sometimes they help relieve itching. This can help prevent you or your child from scratching the rash and blisters, especially during sleep. Some antihistamines can be bought over-the-counter. If you use them, carefully follow the directions on the label. Check with your child's doctor before you give them to your child.
These trigger itching.
A child can play outside in the shade.
Call your doctor now or seek immediate medical care if:
Watch closely for changes in your health, and be sure to contact your doctor if:
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