Second Skin is product that might help for a case of road rash. It was developed for burns, and it's awesome for blisters. It is similar to putting a small patch of clear gelatin over your skin and provides a nice protective barrier. I've had nasty blisters, put on some Second Skin, stopped feeling any pain or discomfort, while I played an atheltic game or hiked. I have never used it over a cut or abrasion, but it should work well.