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Urticaria is an erythematous or white non-pitting edematous plague that changes in size and shape by peripheral extention or regression during the few hours or days. Urticaria is classified as acute or chronic type. The etiology of acute urticaria has been determined in many case, but the cause of chronic urticaria has been determined in only 5% to 20% of cases. This observation was aimed to evaluate the clinical manifestations and clinical indence of urticaria seen between June, 1995 and November, 1996(18months) at the Department of Dermatology, Oriental Medical Hospital, Kyung Hee University. The results were summarized as follows ; 1. In the cases of 106 patients, 43% were male and 51% were female. 2. The pick incidence of age group was 20 to 29(32%). 3. The most frequent duration of urticaria was from 2 months to 6 months. 4. In this study, the inciting causes could not be found in 61% of acute patients,60% of chronic patients. 5. Among 107 patients, 5% of all patients had personal history of atopic diseases and 9 % of all patients had familly history. 6. Angioedema was founded in 7 patients, and the most common involved site were lips, eyelids and tongue. 7. The most frequently treated prescription was Chhunggisan which occupied 51% of all, Gyakhangjunggisan(41%) and Gosamhomasan(25%), Bangpoongtongsungsan(22%) in that order of frequency.
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