痂病

例句：

1. 1. 痂
   皮肤上的硬块
2. 1.He had a severe case of acne and was advised to see a dermatologist.
   他患有严重的痤疮，建议去看皮肤科医生。
3. 2.The patient's condition worsened, and she needed immediate treatment for her eczema.
   患者的病情恶化，需要立即治疗她的湿疹。
4. 3. Scars from the accident are visible on his arms.
   事故留下的疤痕在他的手臂上可见。