支气管哮喘就其本质来说,可以认为是一种免疫性疾病或称变态反应(Allergic disease)疾病。按目前大多数学者所公认的四型分类(Coombs与Gell氏1968,1975),变态反应疾病按其免疫学机理的不同可主要分为四种类型:1.速发型(Anaphylaxis)或称第Ⅰ型;2.细胞毒型(Cytotoxic type)或称第Ⅱ型;3.免疫复合物型即血清病型或称第Ⅲ型; Bronchial asthma, by its very nature, can be considered as an immune disease or a disease called Allergic disease. According to the four types of classification currently recognized by most scholars (Coombs & Gell 1968, 1975), the allergic diseases can be divided into four types according to their immunological mechanism: 1. Anaphylaxis Type; 2. Cytotoxic type (Cytotoxic type) or type Ⅱ; 3. immune complex type that is, serum type or type Ⅲ;