a skin condition in which painful blisters (= swellings containing liquid) form on the skin, in the mouth and nose, and on the sexual organs

He suffers from an autoimmune disorder called pemphigus. 他患有一种叫做天疱疮的自身免疫疾病。

Systemic immunosuppressants are often necessary to control autoimmune diseases like pemphigus. 通常需要使用全身性免疫抑制剂来控制天疱疮这样的自身免疫疾病。