Urticaria is a common allergy-related disease in the clinic. There is no best time to treat urticaria, and the vast majority of patients with urticaria can have their urticaria attacks completely controlled within 3-5 days of taking antihistamines. Some patients with recurrent hives are not due to hives taking medication for too long without regular treatment, but are directly related to their poorer immune resistance and genetics. If a patient has hives and suspects that he or she has hives, go to a regular hospital dermatology department for a consultation and then just take medication in a timely manner. There is no need to be particularly worried about missing the best treatment time if you don’t take your medication within 1 day or half a day, there is no such thing in the clinic.