Hives or urticaria is the skin abnormality which is characterized by smoothly elevated areas of skin often with a blanched center which are red in color and mostly itchy. They may vary in shapes and sizes, from a few millimeters to several centimeters and appear anywhere on the body. The hives appear due to the leakage of histamine and some associated compounds from mast cells which are present in the skin. To vanish these unpleasant and itchy skin patches antihistamine and anti-inflammatory drugs are recommended.
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