Allergy and hot spots related:
One of my girls has a terrible problem with hot spots. I've found Genesis spray from my vet works wonders. It's a bit stingy but it heals it quickly. The last couple of years hasn't been as bad for her for some reason, thank goodness. If it gets too raw and bloody (which happens before you realize it) you can also use a spray I get from the feed stores. It's call Furall and it's a topical spray for wounds on horses and cattle. Works great for the dogs! It comes out yellow and sticks to the hot spot to help it heal a bit before using the Genesis.
Another one of my girls has major skin allergies. She's been on Temeril P and Genesis spray for years. Not good, but the only way we could keep it under control. I tried every shampoo and food out there that I could afford. Last year I tried her on Blue and it helped so much! Then I tried her on Taste of the Wild (a little cheaper than Blue) and ta-da! No more itchies at all! She loves the salmon flavored and the other dogs are jealous.
No more Temeril P, no more Genesis spray, nothing. And to think... all these years (she's 12 and I've had her since she was 5 weeks old) of trying to find her some comfort and FINALLY she's relaxed!