[anonymously]

If it were my dog, I would make an appointment with a veterinary dermatologist as soon as possible. Your dog’s symptoms may have nothing to do with his diet.

Have you used the search engine here?

For example: /forums/search/allergies/
and /forums/search/raw+diet/

PS: Be careful, regarding listening to homeopathic vets, a lot of them are quacks and do more harm than good.
For science-based veterinary medicine, go here: http://skeptvet.com/Blog/