Patients with urticaria have individual differences in their physical constitutions, and not everyone is allergic to the same foods. However, some foods have a higher likelihood of causing allergies, such as seafood, shrimp, crabs, silkworm pupae, beef, lamb, dog meat, various exotic birds and game, fruits like mango, pineapple, durian, and lemon, as well as various food additives. Additionally, spicy and stimulating foods and alcoholic beverages can aggravate allergic reactions and should be avoided as much as possible. Patients who frequently suffer from urticaria may consider undergoing allergen testing to identify which foods trigger allergic reactions. However, the allergen doses used in tests are very small and many factors can affect the results, hence the test outcomes may not fully reflect the actual situation within the patient's body. Moreover, the variety of foods tested is limited, and foods not tested could still potentially trigger urticaria in patients.