What Medication Is Suggested For Rug Burn On Face Which Has Left A Scar?

I had rug burn on my face and it has left a scar...its been about 2 months now and the scar is stil visable. I have been using aclaro hydroquinone USP 4%, Retina-A-Micro 0.04% and IS Clinical white lightening serum..I usually put on all three in the morning before I do my makeup and I make sure to stay out of the sun and if I'm going to be in the sun I make sure to put extra sunscreen on the scar. What do u recomend?