What would be the best approach to further remove scarring left from road rash on face? (Photo)

Two months ago, I was in a car accident that resulted in a small portion of skin being removed from my cheek due to road rash. Since the wound healed, I've been consistently using Mederma, but the scar no longer seems to be responding to it. There is also a small portion of the scar that has a different texture now (Similar to keloid skin). What would be the best approach to reducing the visibility of the scar even more and to help with the textural difference that has developed?