When the patient has repeated sneezing and watery nasal discharge without cold symptoms, which may be accompanied by symptoms such as itchy nose and itchy eyes, the patient is considered to have allergic rhinitis. When allergic rhinitis occurs, patients are advised to go to the hospital to check for allergens. If the allergens can be clearly identified, it is recommended that patients try to avoid contact with allergens, and some allergens can be treated with immune desensitization. If the patient can not identify the allergens, or can not completely avoid contact with allergens, patients and the clinical symptoms of allergic rhinitis, there are conservative treatment and surgical treatment, generally the first choice of conservative treatment. Conservative treatment drugs include nasal spray glucocorticosteroids, antihistamines, anti-leukotrienes, etc. When patients have allergic rhinitis, they should go out and wear masks, ventilate the house diligently, change the bedding and keep the house clean, and they should exercise actively to enhance their physical fitness.