I'm Dr. Wang from Shangqiu Plastic Surgery, and I'll answer you: The redness of the local skin buried during the expansion period is generally normal, but not absolute, depending on the specific situation. For example, if there is any pain in the drained things, it is generally a method of rapid expansion now. After drinking the water, it usually stays for about a week. Then take out the dilator and transfer the local flap. How long will it take to restore the original skin? I don't know what answer you really want. First, it is estimated that Rio Tinto will not recover. Second, it will take half a year even if it is normal.