Objective To evaluate the clinical effect and efficacy of Kecuo Yintong Gel combined with red blue light cure in the treatment of mild to moderate acne.Methods 116 patients with mild to moderate acne admitted into our hospital from January 2013 to January 2015 were selected and randomly divided into therapy group and control group according to number table method,58 cases in each group.Two groups were accepted external kecuo yintong gel.On the basis of control group,the therapy group was treated with red bl...