My dog used to scratch and lick herself raw too. Turns out she was
allergic to our Grass (not a good thing for a dog to be allergic
too!). The vet told us to give her the dye free Benedryl.
That seemed
to help. We moved a couple of years ago and our yard is a different
kind of grass and she hasn’t had a problem since. I was told that
dogs are primarila allergic to 3 things dust mites in the house,
grass and ???
(something else, I can’t remember) ;0}
HTH!
Lori