chronic erythroderma

例句：

1. 1. The patient has been suffering from chronic erythroderma for several years.
   患者已经患有慢性皮疹好几年了。
2. 2. The condition is characterized by persistent redness and itching of the skin.
   这种状况的特点是皮肤持续发红和瘙痒。
3. 3. Chronic erythroderma can be difficult to manage due to its chronic nature.
   由于其慢性性质，慢性皮疹难以管理。