Raised, itchy welts that last less than 24 hours in any one spot are typical.
Raised, itchy welts that last less than 24 hours in any one spot are typical.
Hives (aka urticaria) is a common, itchy, allergic condition of the skin. Below are the approximate percentages of important causes.
See patient handout for more information.
You may get red lines where you scratch. This is called dermatographism.
Urticaria in a child. A viral infection is most likely the cause of hives in children.
Urticaria in a teenage boy several days after starting minocycline for acne. Key points are 1) very itchy and 2) lesions move around within hours.
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