| Hives, or urticaria, are large red areas or whelps that are raised and usually come and go over four to six hours, disappearing in one area and popping up in another. They are usually caused by having an allergic reaction to something. Hives usually only last a few days, but may last weeks, even if your child is not being exposed to what he is allergic to anymore. Treatment of this simple type of allergic reaction is using an over the counter antihistamine, such as Benadryl.
It is not always possible to find out to what your child is allergic, but if you know what your child is allergic to, then you should avoid it. The most common things that children can have allergic reactions to, include:
- drugs
- foods, especially nuts, seafood, beans, egg, milk, and wheat
- insect stings
- food additives
- latex
- blood products
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