Sugar does not heal wounds and can adversely affect wound healing. Wound healing can be promoted by regular dressing changes, infection prevention, and nutritional supplements. Applying white sugar to wounds does not promote healing. Sugar causes an increase in osmotic pressure of local tissues, which increases tissue exudation and even abscess formation, but hinders the tissue repair process, resulting in delayed or even no wound healing. In addition, the application of white sugar increases the risk of wound infection, which further affects wound healing. The key to wound healing is to prevent infection, which can be minimized by frequent dressing changes, timely cleaning of the wound, and the use of antibiotics such as cefuroxime if necessary. In addition, you can strengthen the nutrition, increase meat, eggs and other high-protein food intake, promote tissue repair, accelerate wound healing. After the injury, it is recommended that patients go to the hospital as soon as possible, timely wound debridement, to create a favorable environment for wound healing. It is not recommended to easily believe in certain claims that have no scientific basis so as not to lead to wound infection or even non-healing.