Scar Treatment Suggestion?

Hey Everyone. So about six months ago, I banged my shin into the corner of the bed. A scab formed, but I accidentally shaved it off. (I know) Anyways, now a scar has formed. it is red, and there is a slight indent. The good news is, there is still hair growing out if it. So, any suggestions on how to heal the redness. Also, any insight into how long it will take for the redness to go away? Thanks.