过敏性咳嗽,临床上以咳嗽持续或反复发作1月,晨起或夜间干咳为主,经长期抗生素治疗无效,支气管舒张剂诊断性治疗可使咳嗽发作缓解。门诊治疗迁延不愈,严重影响患儿身心健康。过敏性咳嗽是哮喘的一种特殊类型,其实质是慢性气道炎症[1,2],气道高反应性和可变性气道梗阻。故其治 Allergic cough, clinically continuous or recurrent cough in January, early morning or night dry cough-based, long-term antibiotic treatment is invalid, bronchodilator diagnostic treatment can relieve cough. Outpatient treatment delayed healing, seriously affecting children’s physical and mental health. Allergic cough is a special type of asthma, its essence is chronic airway inflammation [1,2], airway hyperresponsiveness and variability airway obstruction. So the rule