Allergies Again!!!

Poor Allie, we tried to switch his food over to the same food Otis is eating since it has more nutritional value and also because the food Allie is eating is so expensive. He was doing fine for a couple weeks but now a couple of the sores have started popping back up on his face. We thought it would be fine since Otie's food is hypoallergenic and has such limited ingredients but I guess not. Hopefully the sores will go away without antibiotics since we caught it early .