My 6 year old fell off his bike and has major road rash on his face. what can we do to prevent scarring?

Prevent infection: The two things most likely to cause scarring are infection and exposure to the sun. You should keep the area from being exposed to the sun by wearing a hat with a large visor, staying out of the sun, and using sunscreen once the abrasions have started healing. You can apply an antibiotic ointment such as Bacitracin for a few days and watch for redness, pus or swelling: see a doctor if those occur.

Keep wound clean: Apply bacitracin ointment to his face after you have thoroughly washed the wound with tap water. Keep the wound dry and it should heal without complications. If there is pain swelling or redness after 48 hours, you must see your Pediatrician for further treatment.

Prevent infection: Keep area clean.do not rub or scratch it,put antibiotic on it.If severe or worse see doctor.