Nothing is more maddening than a dog who keeps scratching, especially at night. But think of the poor pet -- he or she is feeling itchy all the time. Allergies to both foods and environmental allergens like pollen are on the rise. What can you do to help avoid skin infections and sores? Start by choosing a single protein food, preferably not poultry based. Give a fish oil or fatty acid supplement and be sure to rinse off your dog's feet when you come in from a trip to the park!