Urticarial allergic eruption

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Urticarial allergic eruption is a cutaneous condition characterized by annular or gyrate urticarial plaques that persist for greater than 24 hours.{{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=372 |isbn=1-4160-2999-0 }}Ackerman AB: Urticarial allergic eruption. In: Ackerman AB, ed. Histologic Diagnosis of Inflammatory Skin Diseases, 1st edn, Philadelphia: Lea & Febiger; 1978:181-183.