My pup has a funny red spot that has lost most of its hair and seems sort of inflammed, its on top of his paw and oblong with a surface area of a little more than a quarter. It almsot seems like there is a little cut there so I have been treatign it with antiseptic for about a week, it doesn't seem to cause discomfort and he rarely "fusses" with it. Now I'm noticing small acne like spots inside his ears. I dont think its ringworm becasue he hasn't been around new animals or much grass for months (but i could of course be wrong). Any ideas? The original red spot seems to be improving.