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Urticaria also called nettle-rash or hives or wheals in a common language, simply means itching with rash. Medically, urticaria may be defined as skin eruption, which is allergic in origin and is characterized by profound itching, red circular or irregularly shaped eruptions on any part of the body. These eruptions can remain on the body for variable period, anywhere between few seconds to even hours. They have tendency to disappear and reappear. They tend to disappear without leaving behind any trace. Urticaria is an allergic skin disorder. Characteristically the skin eruptions are erythematous, raised above the skin level, with intense itching and usually worsened by itching & with slight local warmth.