固定型药疹是药物疹中最常见的一型,其皮疹可以发生在皮肤和粘膜的任何部位,口腔粘膜也是好发部位之一。现将20例口腔粘膜固定型药疹分析如下。临床资料一、性别与年龄:男性16例,女性4例,年龄12～57岁。二、服药原因:上呼吸道感染6例,支气管炎3例,头痛2例,牙周脓肿2例,淋病2例,扁桃体炎2例,失眠1例。三、发病部位:在20例中,单纯发生在口腔粘膜上的仅4例,余16例均伴有皮肤或皮肤与粘膜交界处的皮疹。分布于颊粘膜的 Fixed drug eruption is the most common type of drug rash, the rash can occur in any part of the skin and mucous membranes, oral mucosa is also one of the predilection sites. Now 20 cases of oral mucosa fixed drug eruption analysis is as follows. Clinical data First, gender and age: 16 males and 4 females, aged 12 to 57 years. Second, medication reasons: upper respiratory tract infection in 6 cases, bronchitis in 3 cases, headache in 2 cases, 2 cases of periodontal abscess, gonorrhea in 2 cases, tonsillitis in 2 cases, 1 case of insomnia. Third, the incidence of parts: In 20 cases, only occurred in the oral mucosa in only 4 cases, more than 16 cases were accompanied by skin or skin and mucous membrane junction rash. Distributed in the buccal mucosa