Chronic urticaria for injection for no completely good drugs, but you can choose intravenous injection of calcium gluconate and vitamin C drugs, etc., if the situation is more serious, it is recommended to consult a doctor in time for treatment. Chronic urticaria can be under the guidance of a professional doctor for vitamin C, calcium gluconate, compound glycyrrhizin injection, in the case of the situation has not been relieved, you can drop dexamethasone, methylprednisolone, hydrocortisone. When there is an acute attack or when combined with a serious infection, glucocorticoids and antibiotics can be administered. Chronic urticaria can also be controlled gradually by desensitization therapy, intramuscular desensitization injection, from small dose, low concentration, gradually increasing to high concentration and high dose. Of course, allergens need to be identified to avoid recurrent attacks. For the emergence of symptoms, pay attention to not scratch with your hands to avoid infection, pay attention to the diet of the diet of light, avoid contact with stimulating food.