患者男， 22岁， 6天前始感右侧头皮、面部刺痛，阵发性加重，随后出现红斑、水疱。 2天后，左侧胸背感灼热、刺痛，继之出现与头面部类似的皮损、同时伴有畏寒、乏力等全身症状。皮肤科情况：右侧头皮、颊、鼻、唇部及左胸背部可见带状分布的红斑，红斑上有多数成群、簇集的粟 Male patient, 22 years old, 6 days before the beginning of the right scalp, facial pain, paroxysmal increase, followed by erythema, blisters. Two days later, the left thoracodorsal heartburn, tingling, followed by a similar facial lesions with head and face, accompanied by chills, fatigue and other systemic symptoms. Dermatology: the right scalp, buccal, nasal, lip and left chest back visible ribbon distribution of erythema, erythema on the majority of clusters, clusters of millet