患者女 ,9岁。 4～ 5年前无明显诱因在左小指内侧发现一暗红色橄榄核大水疱 ,疱液紫红色 ,疼痛剧烈 ,呈张力性痛感 ,1月后自动吸收 ,恢复正常 ,局部有色素沉着 ,但数月以后仍无诱因在同一部位出现同形皮疹 ,在反复发生多次皮损之后 ,患者家属四处求医 ,经多家医院就诊 ,病因不 Female patient, 9 years old. 4 to 5 years ago, there was no obvious incentive inside the left little finger found a dark red olive blisters blister fluid purple, intense pain, tension was painful, after January automatically absorbed, returned to normal, local pigmentation, but the number of After months there is no incentive to appear in the same position with the same type of rash, repeatedly in multiple lesions, the families of patients around for treatment, the number of hospital visits, the cause is not