尘螨普遍存在于人类居住的环境中,是一种强烈的过敏原,可以引起尘螨性哮喘,过敏性鼻炎和异位性皮炎,均以哮喘为主,反复发作。有些病人还发生慢性荨麻疹,危害人类健康,尤其是儿童。尘螨很小,分布广泛,多见于人居住的卧室,以枕头、被褥、地毯、沙发和不常洗涤的毛衣、棉衣 Dust mites are commonly found in the environment inhabited by human beings and are a strong allergen that can cause dust mite asthma, allergic rhinitis and atopic dermatitis, both of which are asthma-based and recurrent. Some patients also develop chronic urticaria, endangering human health, especially children. Dust mites are small and widely distributed and common in living bedrooms, with pillows, futons, rugs, sofas and infrequent sweaters, cotton garments