1. Intravenous catheter (drip), catheter and wound drainage tube can be retained after operation. Please pay attention to keep good fixation and pipeline unobstructed. 2. The affected limb can be raised with a pillow to avoid compression of the skin graft and maintain a proper fixing and supporting position. 3. The patch area may be fixed with plaster. Please don't remove it at will and restrict activities. 4. If the skin plaque is located in the lower limbs, be sure to stay in bed and don't get out of bed at will. Only when the doctor allows, you can take a gradual exercise to get out of bed. 5. If the skin plaque area is on the buttocks, you can lie prone and pay attention to turning over. 6, nutritional supplements: eat more high-calorie, high-protein diet, such as fish, meat, eggs. 7. Smoking and drinking (including secondhand smoke) are absolutely prohibited. 8. If you find abnormal swelling, pain and oozing blood in the skin harvesting area or skin repair area, please inform the medical staff immediately. 9. Practice according to the professor's method of deep breathing and coughing, and use steam inhalation to help expectorate if necessary. 10. The skin implanted in normal wound will survive after one week, but it still needs to be fixed with elastic gauze or plaster, and the activity should be restricted for two to three weeks to ensure the healing of skin graft. 1 1. For patients with chronic diseases or the elderly, the wound heals slowly and needs a long time of fixation. 12. After the skin graft wound is healed, the skin is dry, and moisturizing oil can be applied. 13. The skin substitute dressing covered in the skin collection area will slowly fall off by itself after drying, and it is not allowed to tear it off by itself to avoid damaging the skin.