变应性鼻炎(allergic rhinitis,AR)是特应性个体接触致敏原后由IgE介导的介质(主要是组胺)释放、并有多种免疫活性细胞和细胞因子等参与的鼻黏膜慢性炎症反应性疾病。根据发作时间的不同,可分为季节性和常年性两大类,前者由季节性致敏物所引起,绝大多数由花粉致敏引起,称花粉症;后者 Allergic rhinitis (AR) is the release of IgE-mediated mediators (mainly histamine) after exposure to allergens in atopic individuals, and involves a variety of immunocompetent cells and cytokines involved in the pathogenesis of chronic nasal mucosa Inflammatory disease. According to the onset time of different, can be divided into two categories of seasonal and perennial, the former caused by seasonal sensitizers, the vast majority caused by pollen allergy, said hay fever; the latter