The main symptoms of rhinitis are as follows: First, acute rhinitis, also known as common cold, is mainly caused by viral invasion of the mucous membrane of the nasal cavity. Second, allergic rhinitis, mainly due to allergens in the nasal cavity caused by the rapid allergic reaction, the main symptoms are repeated sneezing, runny nose, itchy nose, decreased sense of smell, accompanied by itchy eyes, cough and other related performance. Thirdly, chronic rhinitis, mainly caused by the repeated prolongation of acute rhinitis, is also related to air pollution, environmental temperature changes and other factors, the main symptom is the nose is not ventilated, can be intermittent or continuous, accompanied by decreased sense of smell, runny nose and other related symptoms. Fourth, dry rhinitis, atrophic rhinitis, mainly manifested as dry nasal mucosa, mucosal erosion, nasal odor and other related symptoms, can be medical or weather, climate, environment, physical quality and other factors caused by.