I've tried all kinds of store medications and they didnt work whats the best cure for acne scars?

Wouldn't those scar strips help. . .they are made of silicone. They are about 30 dollars a box.I've tried all kinds of store medications and they didnt work whats the best cure for acne scars?
HAVE U TRIED THE NEUTROGENA FADING ACNE MARK PEEL???