Red marks after a beating are usually caused by the skin being hit or slapped violently, resulting in more or less rupture and bleeding of the capillaries under the skin. Early on, cold compresses can be applied topically with ice or ice water mixture, but it must be noted that in order to avoid frostbite on the skin, it is generally recommended to place a layer of cotton on the surface of the skin. In addition, after 1-2 days of injury if the red marks still exist, or subcutaneous bruising, petechiae and other conditions can be given a local hot compress, such as salt bags, warm water bags or hot towels to give hot compresses. If it is the face can use the traditional method of rolling back and forth with a boiled egg, can promote local blood circulation, accelerate the absorption of local bruises, redness and swelling.