Most children with chickenpox act sick with vague symptoms, such as a fever, headache, tummy ache, or loss of appetite, for a day or two before breaking out in the classic pox rash. These symptoms last 2 to 4 days after breaking out.
The average child develops 250 to 500 small, itchy, fluid-filled blisters over red spots on the skin (“dew drops on a rose petal”). The blisters often appear first on the face, trunk, or scalp and spread from there. Appearance of the small blisters on the scalp, found in 80% of cases, clinches the diagnosis. After a day or two, the blisters become cloudy and then scab. Meanwhile, new crops of blisters spring up in groups. The pox often appear in the mouth, in the vagina, and on the eyelids. Children with skin problems such as eczema may get more than 1,500 pox.
Most pox will not leave scars unless they become contaminated with bacteria from scratching.
Some children who have had the vaccine will still develop a mild case of chickenpox. They usually recover much quicker and only have a few pox (< 30). These often do not follow the classic descriptions of the disease. However, these mild, post-vaccine cases are contagious.
Chickenpox is usually diagnosed from the classic rash and the child's medical history. Blood tests, and tests of the pox blisters themselves, can confirm the diagnosis if there is any question.
In most cases, it is enough to keep children comfortable while their own bodies fight the illness. Oatmeal baths in lukewarm water provide a crusty, comforting coating on the skin. An oral antihistamine can help to ease the itching, as can topical lotions. Lotions containing antihistamines are not proven more effective. Trim the fingernails short to reduce secondary infections and scarring.
Safe antiviral medicines have been developed. To be effective, they usually must be started within the first 24 hours of the rash. For most otherwise healthy children, the benefits of these medicines may not outweigh the costs. Adults and teens, at risk for more severe symptoms, may benefit if the case is seen early in its course
In addition, for those with skin conditions (such as eczema or recent sunburn), lung conditions (such as asthma), or those who have recently taken steroids, the antiviral medicines may be very important. The same is also true for adolescents and children who must take aspirin on an ongoing basis.
Some doctors also give antiviral medicines to people in the same household who subsequently come down with chickenpox. Because of their increased exposure, they would normally experience a more severe case of chickenpox.
DO NOT USE ASPIRIN for someone who may have chickenpox. Use of aspirin has been associated with Reyes Syndrome. Ibuprofen has been associated with more severe secondary infections. Acetaminophen may be used.
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Reviewer Info: Daniel Rauch, M.D., FAAP., Director, Pediatric Hospitalist Program, New York University School of Medicine, New York, NY. Review provided by VeriMed Healthcare Network.; ADAM Health Illustrated Encyclopedia, 07/26/2007 |