The following are dietary contraindications for allergic rhinitis patients: 1. Avoid and prohibit the use of allergenic foods as much as possible. Patients themselves should be aware of a certain type or category of food that may trigger an allergic rhinitis attack, and when it has been found and confirmed that this type or category of food may stimulate allergic rhinitis, they must try to avoid using it. 2. Allergic rhinitis patients need to avoid the intake of cold foods such as fruits taken out of the refrigerator, ice cream and cold soups. 4. High protein diet: Allergic rhinitis patients need to avoid the intake of animal high-protein foods such as shrimp, crab, eggs and vegetable high-protein foods such as soybeans, dairy products and soy products.