Urticaria is mostly caused by allergies, usually due to acute allergic reactions caused by allergic components in food or medications, so it is recommended to go to the dermatology department to improve allergen tests and further guide life and living. If allergens cannot be checked, it is recommended to avoid spicy food, seafood, beef and mutton, pupae and other heterogeneous protein substances to avoid aggravating the rash. Also be sure to pay attention to whether there is a combination of infections, and when there is an infection to actively treat the original disease on the rash of hives can be very good relief. The actual fact is that you should be aware of the fact that you can wear loose and breathable clothing to avoid stress. Artificial urticaria should pay attention to avoid artificially caused scratching and induced rash aggravation, cold or cholinergic urticaria must pay attention to avoid the hot and cold environment.