I have had fraxel laser, restylane and bellafil used on this scar on my chin and it won't completely go away. I am in my late 30s and 5'7" and am at 168lbs. The scar came from a chemical burn and may be tethered down. I would like it to be raised up and smooth. Should I have a subcision, bellafil, pdo threading or a combination of procedures?