Our Neo rescue boy, Jesse, has done amazingly well since we put him on a high-end food, and started supplementing him with fish oil caps, garlic caps, vitamin C and Glucosamine/chondroitin supplements. And adding apple cider vinegar to his water. Even his vet was shocked- she says neos aren't supposed to have puppy soft fur and great skin, but Jesse does. Might be worth a try. IF you need more info, let me know and I will give you his dosages. By the way, we do not use any flea preventatives and he has had no fleas since he got here in May.