On the basis of local treatment of wounds, systemic nutritional support therapy can improve the nutritional level of the body and enhance the regenerative ability of tissue cells, thus promoting wound healing. 1, strengthen nutrition: eat more foods to promote wound healing: fatty lipids are the basis of cell membrane and inflammatory mediators, and their lack will lead to wound healing defects. Fish oil is rich in fatty acids, which has anti-inflammatory effect and is beneficial to wound healing. Adding protein and collagen to protein's diet can promote wound healing and reduce the chance of infection. Protein-rich foods include all kinds of lean meat, milk and egg-like snakehead. Vitamin A can reverse the inhibitory effect of corticosteroids on wound healing and promote wound healing. Mainly found in fish oil, carrots, tomatoes and other foods. Vitamin C can promote the synthesis and crosslinking of collagen and promote wound healing. It exists in all kinds of vegetables, fruits, dates and so on. Zinc-zinc deficiency will reduce the function of fibroblasts. Zinc mainly exists in foods such as fungus and kelp. 2. If necessary, albumin and vitamin C can be added intravenously to accelerate wound healing.