The basis for confirming the diagnosis of allergic rhinitis mainly includes the following: 1. symptoms, the patient has repeated sneezing, itchy nose, large amount of clear watery nasal discharge, nasal non-ventilation and other above symptoms, requiring at least 2 or more symptoms. 2. physical examination, the examination can see bilateral nasal mucosa pale, edematous, and large amount of clear watery nasal discharge in the nasal cavity. 3. ancillary tests, including positive skin prick test, Significantly elevated serology-specific IgE antibodies. The nasal excitation test is the gold standard for the diagnosis of allergic rhinitis, but there are certain risks involved in its operation, so it is not used much at present. In conclusion, the diagnosis of allergic rhinitis is mainly based on the above 3 criteria.