Heat urticaria

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Heat urticaria presents within five minutes after the skin has been exposed to heat above {{convert|43|C}}, with the exposed area becoming burned, stinging, and turning red, swollen, and indurated.James, William; Berger, Timothy; Elston, Dirk (2005). Andrews' Diseases of the Skin: Clinical Dermatology. (10th ed.). Saunders. {{ISBN|0-7216-2921-0}}.{{rp|155}}{{cite book |author=Rapini, Ronald P. |author2=Bolognia, Jean L. |author3=Jorizzo, Joseph L. |title=Dermatology: 2-Volume Set |publisher=Mosby |location=St. Louis |year=2007 |pages=267 |isbn=978-1-4160-2999-1 }}