Hives?: Hives are an allergic type of rash that can be related to a reaction to medications, foods, underlying infections, collagen vascular diseases and even cancer. When all of these causes are ruled out we often attribute them to stress. Treatment usually includes antihistamines and sometimes more aggressive treatments such as Prednisone or a new drug that just got approved for chronic hives - xolair.
Answered 1/11/2015
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