Allergic rhinitis is a metaplastic inflammation of the nasal mucosa that occurs when allergic people come into contact with allergens, and is divided into seasonal and perennial allergic rhinitis. Seasonal allergic rhinitis, also known as hay fever, is characterized by nasal itching, multiple bouts of sneezing, profuse watery nasal discharge and nasal congestion, and sometimes the itchy nose is accompanied by itchy soft palate, eyes and throat. Some patients also have chest tightness, coughing and asthma attacks. In seasonal allergic rhinitis, the above symptoms appear during the pollen spreading period and last for several weeks, and once the season is over, the symptoms are relieved and do not heal, and then the following year, the symptoms reappear in the same season. The symptoms of perennial allergic rhinitis are relatively mild, with intermittent or perennial attacks that occur at irregular times, but often occur when cleaning the house, arranging bedding or clothing, smelling moldy odors, or coming into contact with pets. The most fundamental health care measure for allergic rhinitis is to know the substance that causes your allergy, i.e. the allergen, and try to avoid it. Common testing methods include in vivo and in vitro methods. When symptoms occur mainly indoors, the following points should be noted: i. Reduce allergic reactions to the details of life, such as keeping the room clean and dust-free to reduce allergens, vacuum cleaners can be used to clean frequently, etc.; ii. Control the occurrence of indoor mold and mildew; iii. Keep away from pets. Allergic rhinitis can be well controlled by early detection and early treatment, which can reduce the patient’s pain. Patients should not make the mistake of believing that medication will produce dependence and allow allergic rhinitis to develop, for one thing, the quality of daily life will be affected, and in serious cases, asthma will be induced; nor should they turn to doctors for unregulated treatment and delay their condition. The main treatment is to avoid contact with allergens, the application of antihistamines and adrenal corticosteroids, and if available, to receive desensitization therapy with an efficiency of more than 70%.