Your best bet for healing w/o scarring is to keep the wound(s) moist and covered. To that end, there are products, like Tegaderm, which are very good because all you have to do is clean the wound thoroughly, and then apply a large enough patch to cover the wound for 7-10 days, and just let it do its thing. I forget what the medical stuff inside the bandage is (it's called a hydrocolloid dressing), but its job is to absorb all the leaking fluid that would otherwise seep out of an open wound and promote new skin growth underneath. It's pretty neat stuff because the bandage keeps the clothes off the wound, so you can do what you would normally do, even ride, and it's waterproof so you can take showers and stuff w/o changing the dressing.

If you have large areas of road rash it may take more than one dressing change, but it'll definitely be less painful than letting it dry out and scab -> leads to scarring.