临床资料治疗组20例,男14例,女6例.年龄:14岁～63岁,内源性哮喘10例,混合性哮喘7例,外源性哮喘3例.对照组20例,男11例,女9例,年龄:12岁～61岁,内源性哮喘8例,混合性哮喘4例,外源性哮喘7例.治疗方法:治疗组每日晨间一次顿服强的松30mg,7天为一个疗程,对照组常规给予β_2受体兴奋剂和茶碱类,疗程为7天.疗效判定标准:显效:临床症状消失,FEV_1提高50%以上;好转:症状改善,FEV_1提高30%～50%;无效:症状无缓解,FEV_1提高<20%. Clinical data Treatment group of 20 patients, 14 males and 6 females.Age: 14 years old to 63 years, 10 cases of endogenous asthma, 7 cases of mixed asthma, 3 cases of exogenous asthma.Control group of 20 patients, male 11 Cases, female 9 cases, age: 12 years old to 61 years old, 8 cases of endogenous asthma, mixed asthma in 4 cases, exogenous asthma in 7. Treatment: The treatment group once daily morning meal prednisone 30mg , 7 days for a course of treatment, the control group routinely given β_2 receptor agonists and theophylline, the course of treatment for 7 days.Clinical criteria: effective: disappearance of clinical symptoms, FEV_1 increased by 50%; improvement: improved symptoms, FEV_1 increased 30 % ~ 50%; invalid: no relief of symptoms, FEV_1 increased by <20%.