过敏性鼻炎是一种常见的过敏性疾病。它有4大症状:鼻痒、阵发性喷嚏、流清鼻涕和鼻塞。其主要的前期症状有鼻痒;其次为打喷嚏以后鼻腔分泌物增多,也就是我们所说的流鼻涕,以清水样鼻涕为主;然后就是鼻塞。过敏性鼻炎可分为常年性及季节性发作两种临床类型。常年性过敏性鼻炎是一年四季都会发病,但症状会时轻时重。季节性过敏性鼻炎的发病时间是固定的。例如,在北京大部 Allergic rhinitis is a common allergic disease. It has 4 major symptoms: itchy nose, paroxysmal sneeze, runny nose and nasal congestion. The main symptoms are nasal itching; followed by increased nasal secretions after sneezing, which is what we call runny nose, like watery nose; then is stuffy nose. Allergic rhinitis can be divided into two types of perennial and seasonal seizures. Perennial allergic rhinitis will be the disease all year round, but the symptoms will be light when heavy. The onset of seasonal allergic rhinitis is fixed. For example, most in Beijing