What is acute urticaria?

The so-called acute urticaria, is the patient after a certain allergen stimulation, and produce urticaria specific skin damage of a disease, under normal circumstances, the skin damage may be manifested as wheals or wheal-like erythema, most patients may be accompanied by obvious itching symptoms, and acute urticaria generally does not occur for too long, mostly not more than 6 weeks. Under normal circumstances may be about a week, it will gradually heal. The acute urticaria presented by the patient is mainly due to the stimulation of allergens, thus leading to the degranulation reaction of mast cells, which leads to inflammatory edema in the surrounding tissue area, thus leading to the phenomenon of wheals.