慢性咳嗽是指持续时间大于8周的咳嗽〔1~3〕,是临床上最常见的症状之一。咳嗽病因广泛,其中因耳鼻喉咽科疾病导致者占有相当比例。从文献统计来看,对于胸部影像学检查无明显异常,无吸烟史及应用ACEI药物史的慢性咳嗽患者,首先应考虑有无耳鼻咽喉科疾病。在我国、欧洲及美国最新 Chronic cough refers to cough lasting more than 8 weeks 〔1 ~ 3〕, is one of the most common clinical symptoms. Cough causes a wide range, of which due to ENT disease led to a considerable proportion. From the statistical point of view, no obvious abnormal chest imaging examination, no history of smoking and the history of ACEI medication in patients with chronic cough, should first consider the presence of otorhinolaryngology disease. In our country, Europe and the United States the latest