Allergic rhinitis, also known as allergic rhinitis, is an IgE-mediated type I allergic reaction in the nasal mucosa that often coexists with asthma and measles. Clinical manifestations 1. Nasal itching and sneezing: Mostly the first symptom, there may be itching of the eyes, palate and pharynx, sneezing is paroxysmal and can be as many as a few in a row. 2.Runny nose: a lot of clear watery snot during the attack, less snot and thicker snot when relieved. 3.Other: Nasal congestion can be intermittent or continuous. Temporary loss of smell can occur due to nasal congestion. 4.Pale edema or light blue color of the inferior turbinate. There are watery or mucous secretions in the nasal cavity.