I have to agree with the non stick pad followed by gauze
but what i use is antibiotic ointment followed by prewrap (thin foam used most often to prevent hair from being removed by tape) and a layer of tape. It is what I have been using for about 4 years now all though high school soccer which involved many abrasions due to sliding.
an added bonus is that with nothing more than tape and prewrap (gauze works just as well) you can create braces for joints and the two rolls dont take up much space in a FAK