Hydrogen Peroxide(I know many people are anti it b/c it kills good and bad, but when you get all that nasty road debris in there you need to kill everything you can)

Betadine

Tegaderm

anti bacterial ointment

Non Stick gauze pads

tape

the netted sleeve material to go over elbow, arms, legs, etc. to keep non stick pads on(if the area is too big for tegaderm)

pretty much- in shower, scrub out road rash with anti bacterial soap and hydrogen peroxide areas

after shower air dry and then coat area with betadine solution

apply tegaderm or non stick pads

as it heals use anti bacterial ointment throughout dressing changes