[JadeD]

I would get it looked at again. It does similar to what my big dog gets in the summer where his collar rubs on his neck. He ends up with leathery skin there and black scabs on it. Our solution is to take off his collar except during walks (his harness hooks to his collar) until it heals.

I have seen a fungus like growth that sounds similar to this though. I would get it looked at to be sure. If it is a fungus it won't take much to get rid of. They have a cream for that you put on it and it clears it up pretty quickly.