By Gary M. White, MD

Localized heat contact urticaria is a cutaneous condition, one of the rarest forms of urticaria, where within minutes of contact with heat from any source, itching and whealing occur at the precise site of contact, lasting up to 1 hour.


A 54-year-old woman complained of localized swelling and itching of six years' duration following local heat application on bathing or on immersing the hands in hot water. She observed similar reactions on her arms after sunlight exposure through window glass. She also noted swelling of the hands after tightly gripping objects [AD 1978;114;1079].


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