Patients with allergic vasculitis should avoid spicy foods, fish, shrimp, tobacco, alcohol and other irritating foods. In summer, they should avoid foods with high calories such as mutton and dog meat. It can be eaten appropriately when the weather is cold in winter. Patients with allergic vasculitis in coastal areas do not need to avoid seafood due to their living habits, but they should eat more fresh vegetables, such as spinach, rape, carrots, cabbage and other vegetables with high vitamin C content. There is no limit on lean meat. Patients with allergic vasculitis should take a bag of fresh milk or eat a banana before going to bed every day.