Acute urticaria in babies should be found immediately after the discovery of the trigger, generally common is food, such as eggs, milk, beef and mutton, etc. Tropical fruits are also common triggers of acute urticaria, and should be actively avoided after the discovery of the trigger. When urticaria just occurred can be observed 1-2 days, a small number of can be self-healing, if not self-healing can be added paracetamol tablets or cetirizine drops, according to the instructions of the dose and the baby’s weight to use, generally about 1 week can be cured. If it does not heal repeatedly, it is recommended to improve the serum allergen test, and add Yu Ping Feng granules and compound glycyrrhizin tablets for supplementary treatment.