Allergic rhinitis, also known as allergic rhinitis, is a chronic inflammatory disease of the nasal mucosa caused by an allergic reaction after an individual comes into contact with an allergen, and is a disease caused by a combination of genetic and environmental factors. First of all, allergic rhinitis is subject to strong genetic control and is a disease with a polygenic genetic predisposition. The gene enables the patient to release more specific IgE antibodies than a normal person when encountering allergens. Secondly, inhalant allergens in the environment are the main cause of allergic rhinitis. Common inhalant allergens include mites, pollen, animal dander, and so on, which will lead to allergic reactions in the nose after inhalation. Due to the patient’s special physical condition, the allergy produces more inflammatory substances, resulting in nasal inflammation. Patients who suffer from allergic rhinitis need to go to the hospital, follow the doctor’s instructions for treatment, the application of drugs need to strictly follow the doctor’s instructions.