My first yorkie also had severe allergies. It turned out to be due to corn or wheat and probably grass. I learned this myself after many years at the vet, on all kinds of meds, and steroids, etc. Read on another message board about allergies to corn and wheat and that is exactly what was in the food from the vet. When we completely stopped that and tried not letting her get on grass, she cleared up almost (but not quite) completely. The only time she had problems afater that was in the summer, and then it was not nearly as bad. We had a spray from the vet that worked great if I sprayed as soon as I saw her scratching. (don't recall the name, but came in 4 oz maroon and white bottle)
Wouldn't hurt to look at her food and see what is in it. Good luck, I know how frustrating it can be.
Ellie |