pityriasis lichen oides chronica

例句：

1. 1.This patient has a long history of pityriasis lichen oides chronica.
   这位患者患有慢性湿疹的历史很长。
2. 2. The doctor prescribed an anti-allergic cream for the patient's pityriasis lichen oides chronica.
   医生为患者的慢性湿疹开了抗过敏的药膏。
3. 3. The patient was advised to avoid contact with any known allergens, which could exacerbate their pityriasis lichen oides chronica.
   患者被建议避免接触任何已知的过敏原，这可能会加剧他们的慢性湿疹。