There is no exact standard for the recovery time of urticaria, and there are individual differences that can affect it. Urticaria is mainly characterized by wheals and itching, mainly due to mast cell activation leading to dilatation of small blood vessels in the skin and mucous membranes, as well as an increase in permeability. Most are surrounded by a reactive erythema, which usually disappears within 24 hours, but the rash may recur. Acute urticaria is an acute disease characterized by conscious itching of the skin. Within minutes or hours, the edema decreases, and the eruption changes to an erythematous blotch that disappears without leaving a trace. A single subcluster lasts less than 24 hours, but new wind clouds may come and go, constantly. Urticaria that lasts more than 6 weeks is chronic and usually has a long duration and is prone to recurring episodes. Therefore, there is actually no exact criterion for the particular duration of urticaria, and there are often individual differences in terms of their impact. For urticaria disease, you should remove the triggers and cooperate with doctors to improve the patient’s symptoms.