ln order to explore the best scheme of preventing and treating infantile asthma and its prognosis

from 1990 to 1995

a consecutic 33p infantile asthmatic patients were randomized into five groups with sigle - blind method. Group A: sixty - three patients were given Becotide (beclomethasone dipropionate) and Ketotifen; Group B: Sixty - six patients──immuno - desensitization and Bicotide; Group C: Sixty - seven patients──Bicotide

im- muno - desensitization and Ketotifen; Group D: Sixty - six patients─Aminophylline ketard tablet and Ketotifen. Group E(control):sixty - eight patients were treated only during attack. The course of prevention and treatment was at least 1 year. The average time of following up was 2.3 year. The effective rates of group A

B

C were 80.1% (51/63)

84.89%( (56/66)

92.5% (62/68)respectively and they showed satisfactory results. The effective rates of group E

D were 56.1%(18/68) and 56.1%(37/66) with a poor prognosis. lt is recommened that infantile asthma should be prevented and treated early

regularly and with long - term course.