I feed both my dog's 'taste of the wild' I switch varieties every time I buy a new bag to keep them . Beck was scratching himself a great deal when I had him on Chicken Soup, so the vet suggested trying a limited ingredient, grain free food. One nice thing about TOTW is that the dog's poop is firm & small
It can be expensive at the boutique pet stores, but I get it at a feed & grain store where it is a little over $40 for 30 pounds