The role of SaiSkin Run Liquid Dressing is as follows: 1. It can protect the wound surface and avoid the frictional stimulation of the wrapped gauze and cotton pad on the skin or subcutaneous soft tissues, which can lead to their pain or further damage; 2. It can promote the growth of subcutaneous muscle tissue or granulation tissue; 3. It can remove local necrotic tissue. Therefore, it is generally used clinically for larger and deeper wounds, preferably for chronic ulcers with ulcerated necrotic tissues on the surface, accompanied by slow growth of granulation tissues, with the best effect.