Prevention of sneezing in patients with allergic rhinitis includes the following: First, reduce exposure to allergens. Patients are advised to take blood to check allergens to see what they are allergic to and reduce allergen exposure to help reduce the symptoms of sneezing. Patients are advised to wear masks frequently to reduce the inhalation of allergens and also to use pollen blockers and other coatings on the nasal cavity to reduce the adsorption of allergens in the nasal mucosa. Patients are advised to perform frequent nasal rinses with physiological sea saline to reduce the metamorphic reaction of the nasal mucosa. Patients are advised to exercise regularly to improve their body immunity. A sound immune system can also reduce the possibility of recurrent allergic rhinitis attacks. Secondly, it is recommended that patients apply nasal spray hormones and anti-allergy nasal sprays a week before the onset of allergic rhinitis for symptomatic treatment, which can prevent and reduce sneezing, itchy nose and other related symptoms. Third, it is recommended that patients usually use air conditioning as little as possible at home, frequently scald sheets and pillow sheets with boiling water, expose bed sheets to the sun, ventilate the home, reduce the humid environment, often use a mite removal machine to clear the room of mites, minimize the keeping of pets, and eat as little seafood as possible.