Can Dr. Li in Kunming leave scars when washing tattoos?

There are quite a few people who wash Dr. Li's scars in Kunming. I have gone to the hospital to have it repaired. The doctor said my scar was scalded by medicine. The washing method is wrong. I don't know how far it can be repaired. I'm repairing it. Take your time. The quality of washing depends on luck. We are all guinea pigs of these enterprises. Go and buy some medicine to remove scars and see the effect.