dermatitis herpetiformis of external genitalia

例句：

1. 1. The patient's skin was severely itchy and inflamed, which made him uncomfortable.
   病人的皮肤非常痒且发炎，让他感到不舒服。
2. 2. Dermatitis herpetiformis is a common skin condition that affects the outer genitalia.
   湿疹是一种常见的皮肤疾病，影响外生殖器。
3. 3. The dermatologist prescribed antihistamines to help relieve the symptoms of dermatitis herpetiformis.
   皮肤科医生开了抗组胺药来缓解湿疹的症状。