Does anyone have any idea what this could be? Cynna has had this mark on the front of her leg for a couple of weeks now. She always licks it, but it doesn't seem to bother her at all. It just isn't going away so it is starting to concern me.

Does anyone have any idea what this could be? Cynna has had this mark on the front of her leg for a couple of weeks now. She always licks it, but it doesn't seem to bother her at all. It just isn't going away so it is starting to concern me. pom pom!