反复下呼吸道感染是小儿常见的呼吸道疾病 ,儿童时期免疫系统不够成熟 ,抵抗各种病原体能力差 ,以致患儿反复下呼吸道感染。表现为有的孩子肺炎愈后没几天又患支气管炎 ,有的孩子几乎每个月均发 1～ 2次感冒、支气管炎或肺炎等。近几年来 ,我科用中西医结合治疗小儿反复下呼吸 Repeated lower respiratory tract infection is a common respiratory disease in children, childhood immune system is not mature enough to resist the ability of various pathogens, resulting in repeated lower respiratory tract infection in children. The performance of some children with pneumonia after a few days later suffering from bronchitis, and some children were issued once or twice a month a cold, bronchitis or pneumonia, and so on. In recent years, our department with Chinese and Western medicine treatment of pediatric repeated breathing