咳嗽变异性哮喘(CVA)又称咳嗽性哮喘、变异性哮喘,是常见的引起儿童慢性咳嗽的疾病之一。近年来发病率有明显升高趋势,引起了大家的重视。该病以长期顽固性咳嗽为主要临床表现,缺少临床体征,极易误诊。咳嗽变异性哮喘治疗困难,疗效甚微,迁延不愈。为提高对该病的认识,现 Cough Variant asthma (CVA), also known as cough asthma, variant asthma, is one of the common causes of chronic cough in children. In recent years, the incidence has increased significantly, attracting everyone’s attention. The disease with long-term intractable cough as the main clinical manifestations, the lack of clinical signs, easily misdiagnosed. Cough variant asthma treatment difficulties, with little effect, delayed healing. To raise awareness of the disease, now