女孩，2岁。反复喘息发作4次，对花粉过敏，其父年幼时有哮喘病史。为预防哮喘频繁发作，应选择哪项治疗

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SQL Error: select id,body,options from ***_enewstiku where sourceid='29155' and id < 2371893 and id<>'2371893' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29155' and id > 2371893 and id<>'2371893' order by id asc limit 5