[Help] Advice for the spot on my puppy's leg

My 4 month old lab has a spot on his leg, it has been there since we got him at 11 weeks but now that he's growing more, it's becoming more noticeable. We did see it when we first got him but put it off to probably being a liter mate fight and he got some hair ripped out in the process. It never seems to bother him, he doesn't lick it, itch it or even seem to know that it's there. It did start off a little red but the only time he shows interest in it is when I touch it. He's been to the vet and they weren't able to say what it could be, just to apply ointment to it and see if it starts to look any different and if not to have a skin scrapping done so they can properly diagnose it. I just wanted to see if anybody has seen this before? What ointments you would recommend that would work the best? Right now I am just putting bacitracin on it and the only thing I've noticed is that it's not red anymore. Any advice would be great. If I don't see any changes by his next vet appointment, I am going to have the skin scrapping done. Other than this spot, the vet gives him a clean bill of health.I tried getting pictures of it, it's about the size of a quarter right under his knee. Thanks for any advice! =]http://ift.tt/2qTloNR via /r/dogs http://ift.tt/2rWwWjv