Routine examination and diagnosis of allergic rhinitis (1) The presence of symptoms, such as nasal itching, continuous sneezing, and large amounts of clear water-like nasal discharge, are the basis for the diagnosis of allergic rhinitis. (2) Allergic rhinitis is diagnosed by detailed medical history, in terms of past medical history and family history, especially allergic diseases, to find the relevant etiology. (3) anterior rhinoscopy: allergic rhinitis diagnosis can be seen in the nasal mucosa pale edema, a large amount of clear water-like secretions, if due to persistent edema can occur nasal polyps or polypoid degeneration. (4) Smear examination of nasal secretions: during an allergic reaction episode, increased eosinophilic leukocytes can be seen in nasal secretions, and more eosinophilic leukocytes or mast cells can also be detected during the diagnosis of allergic rhinitis. (5) Allergic excitation test: generally with skin tests (scratch, intradermal and contact method, etc.), the principle of allergic rhinitis diagnosis is that there are a variety of presumed allergic substances, so that after contact with the organism, depending on whether there is a reaction appears, can assist in the diagnosis of allergic rhinitis.