皮炎

例句：

1. 1. He developed a skin rash after coming into contact with the allergen.
   他接触过敏原后出现了皮疹。
2. 2. The doctor prescribed an ointment for his dermatitis.
   医生给他开了药膏治疗皮炎。
3. 3. Eczema is a common skin condition that causes itching and redness.
   湿疹是一种常见的皮肤病，会导致瘙痒和红肿。