Abstract: OBJECTIVE: To investigate the efficacy of Yinqiao San to reduce Nasal Adhesion after Nasopharyn-geal Carcinoma Radiotherapy. METHOD: 80 cases treated by our department from January to De-cember in 2017, which are divided into observation group and control group, with 40 cases re-spectively. Yin Qiao San is used for observation group, and normal saline for another. Nasal mucous membrane reaction, nasal adhesion ratio and quality of life are compared between two groups. RESULT: The nasal mucous membrane reaction and nasal adhesion ratio...