« on: Jun 10, 2019, 19:53 »
Hello and welcome to the forum. Unfortunately finding a food to suit individual dogs is often lots of trial and error. It does sound like your dog is reacting to something in his food as he was doing all right before the changes.
You could have some allergy testing for your dog which can be expensive or try a food with few ingredients and a single source of protein. Initially it may be helpful to look for a new protein source then introduce something that was in the foods that he was eating when he was itchy. That way if the itching starts again you will know what is responsible and can cut it from his diet. You can then try introducing other things one at at time to see what happens. Some examples of single protein foods are Acana and forthglade Others may be able to suggest different foods that may be useful.