Urticaria is a very common clinical skin disease, type I allergic reaction is its main pathogenesis, the disease is easy to recur, because food allergies often induce acute urticaria, so many people think that hives should be avoided, that hives is not all must be avoided? The answer is certainly not. In fact, the causes of urticaria are very complex, of which drug and food allergies and infections are the more common causes of acute urticaria. Acute urticaria patients still need to avoid appropriate food: 1, animal protein foods: seafood, fish and shrimp, shellfish, beef and mutton, eggs, milk, etc.; 2, fruits, vegetables: such as tomatoes, strawberries, peaches, garlic, onions, mushrooms, etc.; 3, nuts (such as peanuts, etc.); 4, food containing food additives (such as ham, bread, soft drinks, etc.); 5, chocolate, coffee, etc.; 6, spicy stimulating food, wine. When acute urticaria is not clear allergic food, you can keep a food diary, especially before and after the onset of the rash should be recorded in detail related to food, many times compared to the high rate of repetition may be the allergen. The cause of chronic urticaria is more complex, and most patients cannot find a clear cause, but food allergies are not the main cause of chronic urticaria, so there is no need to blindly avoid eating. If you have an acute attack of chronic urticaria, you can keep a food diary to find the allergens.