Just take out the stitches, and don't touch the water locally. A light diet can repair sunken scars. There are many general repair methods, such as scar excision, skin grafting, softening needle, laser and so on. Which method is more suitable for you depends on the size and location of the scar and the tension of the local skin, so it is recommended to treat it according to your own situation, which can be recovered. After treatment, the local area should not be wet temporarily, and the diet should be light. Generally, it can be recovered about half a month to twenty days after treatment.