Hydrogen peroxide cleared up a few of my scars and worked very well to remove the redness. Use 35% food-grade hydrogen peroxide, diluted down to 3% (one part H2O2 (Hydrogen-Peroxid) to eleven parts distilled water). Dab a little on the scar and rub it in. I recommend that you *not* use regular drugstore 3% H2O2.
I am white (skin color) so darker toned skin might produce different results. Try the H2O2 (Hydrogen-Peroxid) somewhere other than your face first to see how your skin reacts.