Tug-a-Lug and Maddy-girl, the continuing saga

This summer I'm house and dog sitting for free rent at a house. I'm living with another intern and we take care of things together. We are living in a nice house that would be even nicer if it had ever been taken care of by its owner. We are taking care of two dogs who since we've started taking care of them have improved in look, smell and behavior. People who knew them before we came didn't recognize them even after only a week in our care. And yet. . . we have had to take Tugs to the vet twice now for a continuing rash because we are not sure how bad it may be for him. He's in good spirits and doesn't really make much note of it, but. . . we worry. So now he's on antibiotics and a topical cream and we're hoping that will contain this bug.