Children with swollen faces are often encountered in clinical practice, and the swelling is usually most obvious on the 2nd-3rd day after the injury. Patients are advised to give cold compresses to the swollen area immediately after the injury, and local external compresses with cool towels or ice cubes can play a good role in stopping bleeding and reducing swelling. If the local swelling is serious after the injury, and there is even bruising and bruising, consider that there is local capillary rupture and bleeding. The stagnant blood will gather in the local area to stimulate the nerves and also cause local pain. Therefore, cold compresses with ice can play a good role in stopping bleeding and swelling, reducing local inflammatory exudation and relieving pain. 48 hours later, patients can apply local heat compresses, using hot towels or hot water bags to increase local blood circulation, promote the absorption of blood stasis, reduce swelling and disperse stasis. If the swelling is only localized, no antibiotics can be taken, and the swelling will basically subside in about 3-5 days, or at most a week.