Allergic rhinitis, also known as allergic rhinitis, is an allergic disease that occurs in the nasal mucosa and is an abnormal reaction of the body to one or more substances. Patients with allergic rhinitis are mostly susceptible individuals, i.e. atopic individuals, and certain substances are harmless to most people, while patients with allergic diseases produce a special antibody, called IgE, in their bodies after exposure to these substances, which can react with allergens (allergens) in the environment and stimulate the body to release certain excessive chemicals and subsequently produce various symptoms. In recent years, the incidence has increased significantly, probably due to genetics, atmospheric pollution, increased concentration of sulfur dioxide in the air, changes in dietary structure, and an “overly clean” lifestyle. Children and young adults are the most affected. How to prevent and treat allergic rhinitis? 1, pay attention to environmental health: avoid dust and mold breeding; it is best to wash the pillow and bedding with hot water every week, and try to wear a mask when cleaning; avoid over-stimulating smells, such as mosquitoes, incense, paint, cleaning agents, etc.; avoid keeping pets at home, such as cats, dogs, birds, rabbits, rats, etc.; avoid smoking and being in the second-hand smoke or dirty air; skin allergy sufferers should avoid excessive use of cleaning agents. Seasonal allergic rhinitis patients should reduce contact with suspicious plants during the onset of the season, and go out with a mask, etc. 2, pay attention to body warmth: when sleeping, you can slightly cushion the pillow head and shoulders, sleeping room temperature should be moderate, rather than too hot, not too cold. When you get up in the morning, you should add clothes, and after getting up, you can lightly cover your mouth and nose with a warm towel for a few minutes. Brush your teeth and wash your face with warm water in the morning. After taking a shower or shampooing, dry your body and blow dry your hair as soon as possible and put your clothes on immediately. When you go out or ride a motorcycle in the morning on a cold day, you can put on a mask to keep your mouth and nose warm and moist and reduce the stimulation of dry and cold air. 3, keep a happy mood: emotional moderation should be moderate, avoid violent mood swings. 4, exercise to enhance physical strength: avoid taking cold showers, getting wet, swimming in the morning or swimming on cold days, preferably when you are in better physical condition, and swimming only in the afternoon in summer. Do not be overly tired or stay up late, try to get enough sleep to maintain a high level of physical strength. You should do regular and progressive exercises such as hiking, walking, running, rhythmic dance or playing ball. 5.Avoid raw and cold food: Eat more fresh food or food with more protein: such as fish, cow’s milk, eggs, soybeans, meat, etc. and cereals. More hydration. Try to avoid cold drinks, ice water, cigarettes, all kinds of alcohol and artificially flavored processed food