哮喘是日常生活中的常见病,好发于秋冬季和冬春季节,尤其是眼下春暖花开时。根据发病有无过敏源,可分为外源性和内源性哮喘。诱发因素有空气中的花粉、尘螨,饮食中的鱼、虾、牛奶等。致敏介质作用于支气管上,使支气管平滑肌痉挛、狭窄,气流受限,肺通气障碍,呼吸困难等,造成喘息、气急、胸闷、咳嗽等症状,严重者可窒息死亡。急救措旃如果身边有人突发哮喘,不要惊慌失措, Asthma is a common disease in daily life, occur in autumn and winter and winter and spring, especially now when the spring flowers bloom. According to the incidence of allergens, can be divided into extrinsic and endogenous asthma. Induced by air pollen, dust mites, fish in the diet, shrimp, milk and so on. Sensitization medium acting on the bronchus, bronchial smooth muscle spasm, stenosis, limited airflow, pulmonary ventilation disorders, breathing difficulties, resulting in wheezing, shortness of breath, chest tightness, cough and other symptoms, severe cases can be suffocated death. First aid measures 旃 If someone around sudden asthma, do not panic,