Acute urticaria cannot be cured by itself. However, some of the triggers clear acute urticaria, such as alternating hot and cold, pollen inhalation, food, drugs and a variety of physical and chemical factors, caused by a clear cause of sudden acute urticaria, after the elimination of triggers can subside on their own. Patients with severe allergic symptoms need prompt treatment. If the cause of acute urticaria is not known, the allergens cannot be avoided, or the allergens are difficult to remove, the attacks will be repeated. It may gradually turn into chronic urticaria and may even be accompanied by other diseases such as allergic asthma. After the appearance of acute urticaria, it is important to avoid further irritation, stay away from possible allergens and do not scratch the skin. If you scratch the skin without stopping the itching in time, it may further cause skin redness, swelling or infection. Acute urticaria patients need to go to the regular hospital dermatology consultation by a professional doctor for standardized diagnosis and treatment.