在社区门诊工作中最常见的疾病就是感冒,患者大多数采取自行购买感冒药口服,头痛鼻塞流涕等症状较快缓解,但有的人咳嗽却没有止住,于是长期大量口服止咳抗菌药,也不见好转。引起咳嗽的病因很多,其中咳嗽变异性哮喘所致的咳嗽容易被忽视或认识不足,咳嗽变异性哮喘(CVA)是指以咳嗽为主要征象的哮喘,其病理基础是气道慢性变态反应性炎症,咳嗽变异性哮喘的咳嗽原因并非仅因气管平滑肌收缩所致,其可能与分布在大气道为主的咳嗽感受器对各种刺激的敏感性 In community outpatient work is the most common disease is a cold, most patients take their own purchase of cold medicine oral, headache, runny nose and other symptoms faster relief, but some people did not stop cough, so long-term large oral cough antibacterial drugs, Not seen improvement. Cough caused by many causes, including cough variability asthma cough easily overlooked or underestimated, cough variant asthma (CVA) refers to the main signs of cough and asthma, the pathological basis of airway chronic allergic inflammation , Cough variant asthma cough causes not only due to tracheal smooth muscle contraction, which may be distributed with the airway-based cough susceptor sensitivity to various stimuli