I just noticed that my puppy has a couple of patches of tender, hairless skin in what would be one of his "arm pits" (under one of his forelegs). He is a lab mix, the other "pit" seems fine but this one looks red and tender. It is soft to the touch...
I am worried since I don't know what could be causing it. He had his last bath over a week ago and his skin does not seem dry. I don't think he can reach the spot so it doesn't seem possible that he might have overzealously scratched himself.
Help!