Aim To investigate the role of Chinese herb medicine 1023 co. in treating and blocking cancer transformation of precancerous lesion including Oral Leukoplasia(OLK)? Oral Lichen Planus(OLP) and discoid lupus erythematosus(DLE).

• 目的 探讨 10 2 3对口腔白斑 (OLK)、口腔扁平苔藓 (OLP)和盘状红斑狼疮 (DLE)等癌前病变的治疗作用和阻断癌变的作用。