What Can I Add To Dog Food For Itchy Skin. Basically, dog food can cause a dog itching. Protein makes up a large part of the dog food recipe, and commonly found protein sources can cause skin irritation in dogs.

Natural baking soda is an effective remedy to stop itching. We were told that this could be due to the growing mushrooms in the yard. We added ground flaxseed to their diet and the itching stopped.