the first step in controlling hives is to identify the cause if possible. once you have identified the source of the problem try to avoid exposure to it in the future. a mild case of hives often disappears on its own after a few hours. a longer-lasting case should respond to the manufacturer's recommended dosage of an over-the-counter oral antihistamine. if your hives don't disappear in a few days see a doctor. if you develop symptoms of angioedema or anaphylaxis get medical help immediately. for chronic or especially troublesome outbreaks of hives your doctor will probably order a course of prescription antihistamines. treatment with oral corticosteroids will sometimes reduce swelling when antihistamines don't work but they are usually reserved for more severe cases. if you have the subsurface welts of angioedema you may require hospitalization.
what are standard treatments for hives?