When I first saw Andy's shell I thought I have a really bad problem. I assumed the blood was from being rammed. I have 4 females housed together. Upon closer inspection of the wound, the other girls, and then the enclosure, I believe she is rubbing along the corner of the heater box in her night box. We have sanded it down round, but Andy has rubbed her new growth raw. Should I put anything on it? I was thinking neosporin, but I have not had to deal with this kind of thing before, so would appreciate opinions. Sorry it is not a great pic, but you can see the bad spot as well as all along the new growth there it is a little pink.