Grading & Level of Importance: B
Jiangan Zhang, Zhengzhou
概述：
一种急性对称性发疹性皮肤病，皮损呈衣领状脱屑，主要累及躯干，好发于年轻成人。
病因：可能与病毒（人疱疹病毒7型，HHV-7）感染有关。
初始皮损为大的斑片（母斑），继之出现多发性小的皮疹，皮损长轴沿皮纹走向，鳞屑呈衣领状，少见瘙痒，只有当皮肤受刺激时明显（如过多洗浴、应用致皮肤干燥的药物）。
皮损主要分布于躯干，有时累及颈部和四肢近端。
4-8周后自愈。
需和二期梅毒、药疹、 体癣、银屑病和钱币性湿疹鉴别。
保护皮肤，避免刺激，如伴瘙痒, 应用止痒剂或润肤剂。
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