作者用维生素甲酸治疗扁平苔癣,采用10毫克装口服胶囊或0.1%口腔基质的外用药,或二者同时并用。共治疗17例患者。结果4例口腔内散在丘疹口服该药每日30毫克,2～3周后完全消退。8例颊部或舌部融合成自斑样丘疹,每日30～60毫克,5～7周后有好转,其中5例变成细条状,3例消退约 The authors treated with lichellosis for lichen planus, with 10 mg oral capsules or 0.1% oral administration of the external matrix, or both at the same time. A total of 17 patients were treated. Results 4 cases of oral buccal papules oral administration of 30 mg daily, 2 to 3 weeks after the complete regression. 8 cases of buccal or tongue fusion self-papulosis, 30 to 60 mg daily, 5 to 7 weeks after the improvement, of which 5 became thin strips, 3 cases of subsided