My mom watched Cooper for me last night because I was out of town and I noticed today when I brought him home that he has these red spots on his stomach and one on his arm. He was running around the yard at my sister's house with her dog so I don't know if it is something from her yard or just got a little beat up. I've never seen anything like it before. He's gotten staph infections before, but they didn't look like this. Any idea what this could be?