What is the best way to treat facial abrasions?

I got into a serious car accident couple days ago. Because of this ordeal, I have abrasions on my face (on my nose, on my mouth, and around my mouth area). What is the best way to treat these abrasions so that there will be no scarring after they have healed? When these abrasions start to heal, I know they will get irritating (pain, itchiness, etc.), any good ways to deal with these effects? Thanks for answering.|||You didn%26#039;t go to a doctor after the accident? You should have asked your doctor.