哮喘患者一般分为三种情况:一是婴幼儿或青少年哮喘持续发作迁延而致;二是幼年有哮喘病史,中青年缓解到老年复发;三是进入老年后首发。春季是哮喘患者容易复发或加重的时候。老年哮喘更具有复杂性,多数患者体质虚弱,抗病能力低下,伴有其他疾病或并发 Asthma patients are generally divided into three situations: First, infant or adolescent asthma sustained prolongation caused by the second is the history of childhood asthma, middle-aged to ease the recurrence of the elderly; third is the first episode after entering the elderly. Spring is the time when patients with asthma can easily relapse or aggravate. Elderly asthma is more complicated, the majority of patients with weak constitution, disease resistance, accompanied by other diseases or complications