The following causes are considered for the appearance of hives all over the body: i. Due to infections such as bacteria and viruses. Allergic factors, such as allergy to sunlight and ultraviolet radiation or allergy to foreign proteins caused by contact with beef, lamb, seafood, protein powder, chicken, duck, goose and dog meat. Third, suffering from hypothyroidism or hyperthyroidism, or combined with H. pylori and other digestive tract diseases caused by hives. Fourth, there is mental tension, excessive stress and other emotional factors leading to urticaria. In the clinical treatment, you can choose to quietly order compound glycyrrhizin injection and take oral olopatadine hydrochloride tablets or fexofenadine hydrochloride tablets for treatment.