People with urticaria can usually eat oranges, but if the allergen test is positive for oranges, or if you find that eating oranges can trigger urticaria in your regular diet, then you should not eat oranges. In general, special foods and food additives can trigger the emergence of urticaria, the more common are animal protein foods, such as fish, shrimp, crab, meat, eggs, etc., as well as food additives, preservatives and coloring. Urticaria patients in the usual diet, try to avoid seafood, spicy stimulating food intake, usually can eat more vegetables and fruits, hives can help. But there are some special allergies, you can check the allergens to clarify which kind of food allergies, so as to avoid intake. So routinely, hives patients can eat oranges, but if they themselves are allergic to oranges, try not to touch them again.