安×，女，41岁，护理师。于1995年春双侧小腿外侧碰伤瘀血后形成约3cm×3cm大小皮炎，癌痒不著，经本院皮肤科给皮炎平软膏外用，每日2次。用药3天后，双膝关节以下出现散在红色皮疹，无痛痒。经吃辛辣食物后皮疹增多并出现蜃痒。患者误认为食物过敏，继续用该药。1周后，皮疹 An X, female, 41 years old, nurse. In the spring of 1995, after the blood stasis on the lateral side of the bilateral leg, a dermatitis of about 3cm × 3cm in size was formed, and the cancer was itchy. The dermatitis of the hospital was applied to the dermatitis ointment twice a day. After 3 days of treatment, scattered red rashes appeared below the double knee joints and no itching. After eating spicy foods, the rash increased and itching occurred. The patient mistakenly thought of food allergies and continued to use the drug. After 1 week, the rash