Urticaria is an allergic reaction and there is no way to eradicate it, only to minimize recurrence. Most people who develop acute urticaria rarely have recurrences, but a few people may have recurrent episodes or a longer history of the disease. Recurrent episodes with a history of more than six weeks are called chronic urticaria and take longer to treat. Antihistamines are the first choice for the treatment of urticaria, and second-generation antihistamines such as loratadine, cetirizine, epinastine, fexofenadine and epinastine are commonly used. At the same time, we need to pay attention to the removal of allergens, avoid hot and cold stimulation, if there is an infection, actively control the infection, and follow the doctor’s instructions for regular medication treatment. Do not take the medication when the rash appears and stop after the rash subsides, as this will easily lead to recurrence of the rash.