Elwood eats Canidae, which has no corn, wheat or soy.
He's been having a tough time, scratching etc. Finally developed a hot spot.

I now have an ointment for him and I have to keep up the chlortrimeton until we get a real break from the heat. This week it does seem a bit cooler, but it's not exactly sweatshirt weather.
I also got an oatmeal shampoo for him.
We never had this flea/allergy situation last summer, but he swam more and was bathed regularly back then.
The vet says bathing him more often might help his coat, also we will be drizzling a bit of olive oil onto his food.