Scars arent really something you can get rid of. Cocoa butter is the only thing I know of that really helps and if that isnt working enough then I think the only thing you can do is talk to your doctor (or dermatologist if you have one) and ask them what you can do.
I am white....very white lol and I have stretch marks like crazy and about 12 scars across my stomach and arms from surgeries and there is NOTHING that I can do to get rid of them completely. They will always be a purplish reddish color, my stretch marks eventually turn a whitish silver color, but the other ones (incision marks) will never turn back to their normal color, it has to do with the pigments in the skin and the scar tissue. The only thing I can suggest, is that if they are on your face, use a good concealer, but besides that....I dont know what to tell you.