The use of povidone-iodine can promote wound healing to a certain extent, however, the main purpose of povidone-iodine is to disinfect and sterilize the wound. However, iodophor can promote the growth of granulation tissue to a certain extent, so it can promote wound healing to a certain extent. Wound healing is mainly based on the growth of the soft tissues of the patient’s skin, as well as the secretion of regenerative factors. In the early stage of the wound, medical povidone-iodine can be used to disinfect and sterilize the local area, killing the bacteria, spores, fungi and some viruses on the wound. As the soft tissue of the wound itself grows, granulation tissue begins to appear slowly, at this time you can use iodine povidone gauze to fill in, stimulate the growth of granulation, and at the same time can effectively prevent infection. Patients need to make dietary adjustments, eat more nutritious, easy to digest, easy to absorb food, as well as eating fresh vegetables and fruits to supplement vitamins.