支气管哮喘往往反复频繁发作,常可导致阻塞性肺气肿,合并自发性气胸、纵隔气肿,甚至引起死亡。目前支气管哮喘尚无可靠的病因治疗措施,因此预防复发十分重要。哮喘发作的诱因除吸入过敏原外尚有多种因素:如吸烟、化妆品气味、化学物质、动植 Bronchial asthma often frequent recurrent episodes, often can lead to obstructive pulmonary emphysema, spontaneous pneumothorax merger, mediastinal emphysema, and even cause death. Currently there is no reliable cause of bronchial asthma treatment, so the prevention of recurrence is very important. In addition to the cause of asthma attacks inhaled allergens in addition there are many factors: such as smoking, cosmetics smell, chemicals, animals and plants