So over the last week or so we decided to change Kings food to the same food Kings brother is eating. When we did so, he became EXTREMELY itchy, even with meds. That pretty much told me right there that it is definatly a food alelrgy. What i ended up doing was going through every food that we gave King and, all but a few that gave him the runs had major amounts of chicken or chicken products in them. Now we had gone through the foods before, but the vet and dermatologist told us to look for things like rice, wheat and yeast. Well King is being switched over to Solid Gold Hund-n-Flocken. I will keep you all updated as this is probably the most promising thing yet and basically, im hoping for the best.