支气管哮喘是由嗜酸性粒细胞、肥大细胞等多种细胞参与的气道慢性炎症,伴有气道反应性增加,临床表现为可逆性气流受限,并引起反复发作性的喘息、气急、胸闷、咳嗽等症状,常在夜间或清晨发作、加剧,多数患者可自行缓解或经治疗缓解。目前正值初春哮喘发作高峰,应加强哮喘防治。诊断标准:1 与接触变应原、冷空气、物理、化学性刺激,病毒上呼吸道感染、运动等有关;2 发作性气喘、咳嗽,发作时双肺可闻及散在或弥漫性以呼气为主的哮鸣音;3 临床表现不典型者,可具备以下一项试验阳性:① Bronchial asthma is a chronic airway inflammation involving a variety of cells such as eosinophils, mast cells, with increased airway reactivity, clinical manifestations of reversible airflow limitation and recurrent wheezing, shortness of breath, chest tightness , Cough and other symptoms, often at night or early morning attack, aggravating, most patients can relieve themselves or by treatment. At the peak of early asthma attack, asthma prevention should be strengthened. Diagnostic criteria: 1 and exposure to allergens, cold air, physical, chemical irritation, viral upper respiratory tract infection, exercise and other related; 2 episodes of asthma, cough, attack lungs can be heard and scattered or diffuse to expire The main wheeze; 3 atypical clinical manifestations, may have one of the following test positive: ①