1临床资料患者男,43岁,右上肢簇集性水疱伴疼痛5天,全身散在丘疹、水疱3天入院。患者于5天前无明显诱因右上肢屈侧出现红色斑片,随即出现密集小水疱,伴轻微疼痛。在外院诊治(具体不详),水疱逐渐增多。3天前,四肢、躯干、头面部散在出现丘疹、水疱,至本科就诊。既往体健,有抽烟 1 clinical data Male, 43 years old, right upper extremity clustered blisters with pain for 5 days, the whole body scattered in the papules, blisters admitted for 3 days. Patients had no obvious incentive 5 days ago, the right upper limb flexor red patches appear, followed by dense small blisters, with minor pain. Outside the hospital diagnosis and treatment (specific unknown), blisters gradually increased. 3 days ago, limbs, trunk, head and face scattered pimples, blisters, to undergraduate treatment. Past physical health, smoking