This image displays urticaria (hives) on the palms. This image displays widespread urticaria (hives). This image displays urticaria (hives). This image displays urticaria (hives) due to an allergic reaction. This image displays a red area of swelling on the foot typical of urticaria. Urticaria (hives) can consist of large areas of redness and welt-like skin lesions. This image displays pink areas of a rash surrounded by lighter areas (due to constriction of blood vessels) typical of urticaria (hives). This image displays widespread urticaria (hives) involving the face. This image displays the pink and light red patches typical of urticaria. This image displays how urticaria (hives) often looks lighter in the center of the welts. This image displays welts and large hair follicle openings caused by swelling from urticaria (hives).
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Hives (Urticaria)  A parent's guide to condition and treatment information

Picture of Hives (Urticaria): This image displays urticaria (hives) on the palms. Divider line
This image displays urticaria (hives) on the palms.
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Signs and Symptoms
The most common locations for hives include:
  • Trunk
  • Upper arms or upper legs
However, hives can affect any skin surface.

Individual lesions of hives appear as distinct (well-defined), pink-to-red swellings ranging in size from 2 mm to over 30 cm. Some lesions may develop a lighter center. Hives usually appear in groups or batches.

Individual lesions of hives disappear within 24 hours, though a single episode may last much longer.

Dermographism is a type of hives that appears within a few minutes of scratching the skin. The rash usually appears in a straight line (linear) pattern.

Swelling of the eyes, mouth, hands, feet, or genitals can sometimes occur with hives. This swelling, called angioedema, usually goes away within 24 hours.

Hives is usually an itchy rash that can also burn or sting.
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Last Modified: 22 Dec 2008
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