I had an accident about 5 years ago. I got a scar on my upper right lip by the hitting of car's windshield. I had an surgery for this too but it doesn't work at all. My moustache is not growing in that portion. The scar is about 3.5cm in size. After my first surgery my upper lip is joined with the scar and lip gets lifted up. I want to get rid of it. It feels so bad and ugly. Please help me.