A raw diet very often will help dogs with skin conditions and overall improve their immune health. However, not all allergies are food related and raw diet may not completely help- or even help at all. A friend's dog has really bad rashes and skin irritations that were so constant she thought it must be the food. She went to grain free food, and then to raw, with little improvement. Many, many allergy tests were conducted and finally she got an answer. He's allergic to dust mites! The raw diet has helped some, but controlling dust mites is pretty difficult so despite a raw diet he is still a little itchy. She is keeping him on raw as she's seen him improve from the raw diet, and wants to give him all the help she can. I've heard many, many cases of dogs with rashes, dry skin, constantly itching, and raw works like magic to solve the issue. It's not magic for every dog as environmental factors can be playing a role too, but raw is a great start and may be the solution for your dog.