The main thing is to cut off the scar tissue, and then sew up the relatively uneven skin with very, very thin stitches, so that there is no scar after healing. The effect is certainly not as good as before, but it will look much better. And it takes time to exercise and recover after sewing. When sewing, one inch of skin needs hundreds of stitches. . . In short, you must find a good doctor to do this operation. The quack will hide, and he will give you a big scar. . .