There is a young looking squirrel who comes around to get the nuts we place out for the neighborhood squirrels. He recently showed up with what looked like a sore or perhaps a bite mark near his eye. There is another of these wounds on one of his legs. The squirrel seems healthy (other than having what appears to be a sever case of ADHD) but I am worried that this could be some disease? Could he infect other squirrels? Anything I can do to help him?

Here is the best pic I could get of the "sore" near his eye.