You are lack of pigment after injury and belong to old scar. Treatment is troublesome and needs to be discussed from two aspects; First, plastic surgery to flatten the scar requires you to go to a professional beauty hospital. Second, the loss of pigment after injury can be treated by Bai Dianfeng. The color is a little purple, mainly because the skin becomes thinner and whiter.

I wonder if I am satisfied with this answer? The existing medical technology is like this. No one will be very satisfied with who you put it on. But what is the actual situation after all? All this is still up to the attending doctor you seek treatment for.