Patients with allergic rhinitis need to avoid certain foods. Allergic rhinitis is a common otolaryngological disease, mainly caused by the patient's exposure to allergens in food or air, leading to acute edema and congestion of the nasal mucosa. Allergens can be varied, including dust mites and pollen in the air, as well as foods like seafood, fish, and shrimp. Therefore, if allergic rhinitis is caused by food allergens, especially fish and seafood, patients should be cautious and avoid consuming these foods in daily life. Additionally, patients should also reduce the intake of spicy and irritating foods, as these may also exacerbate and cause recurrent allergic rhinitis.