Objective To evaluate the efficacy and safety of sublingual immunotherapy (SLIT) with standardized Dermatophagoides farinae (Df) drops for allergic rhinitis (AR) sensitive to house dust mites (HDM).

• 目的研究标准化粉尘螨滴剂舌下含服免疫治疗,对尘螨过敏变应性鼻炎患者的疗效及安全性。