Objective To observe the effect of Runfei Zhike Decoction（Decoction for moistening the lung to stop cough）on infan- tile cough variant asthma（CVA）and the influence on in vitro allergic agent.Methods The 184 cases of infantile CVA were random- ized into two groups.The treatment group（124 cases）was given the self-made Runfei Zhike Decoction

and the control group（60 cas- es）was given penicillin and aminophylline

with routine dosage for treatment

3 days as one course

totally 2 or 3 courses.Before treatment and 6～8 weeks after treatment finished

the serum total IgE

aspiration and ingestion allergic agents were examined once respectively with radioallergosorbent test（RAST）.Results The effective rate of treatment group was 94.35%

significantly superior to that of the control group（75.00%

P<0.01）

and so was the improvement of clinical symptoms;the serum total IgE and to-nega- tive rate of in vitro allergic agent were both better than those of the control group.Conclusion Runfei Zhike Decoction is effective for CVA and has an obvious promotion on serum total IgE and to-negative change of in vitro allergic agent.