Sudden allergies and bumps on the patient’s body, as well as a significant itching sensation, this situation is usually the occurrence of urticaria. After this situation, you need to immediately take antihistamines to relieve, the vast majority of patients with urticaria, in the application of antihistamines, such as loratadine, cetirizine can be a rapid relief, the patient needs to insist on taking, about 3-5 days, or even 7 days or so, to be able to completely control the condition, if only one time to take the later, urticaria will probably be recurring The patient needs to keep taking it for about 3-5 days or even 7 days before the condition can be completely controlled. If the condition is localized, it can also be treated with topical glycerite lotion, but if it is generalized, glycerite lotion may not be very effective. If the allergic reaction is not effectively controlled after the application of these drugs, but will become more and more serious, the patient must go to the hospital to apply glucocorticoids, and calcium gluconate drugs for intravenous treatment.