Replying to Dr. NS: scraped elbow will not heal.

i scraped my elbow over a month ago while skateboarding. its nothing too deep or serious looking, and usually isnt very painful. however because i almost always fall on the same elbow while skating, every time the cut starts to scab over i fall on it and its open again. this has happened to the same cut at least 8 times so far. a couple weeks ago i managed to keep it covered well enough that the scab came off naturally, but the thin fresh skin busted open next time i fell on it. ive been using neosporin and keeping it well protected with band-aids and elbow pads when im skating, but it keeps happening anyways. im afraid that if it goes on much longer it will either become infected or just become a constant annoyance, so im looking for answers. any other skaters / bikers / bladers who have had similar problems? any other advice or home remedies? im looking for any solution i can find at this point.