Manage your dog’s itching and skin irritations with Hill’s Prescription Diet Derm Complete Rice & Egg Recipe Dry Dog Food. This breakthrough clinical nutrition is a “tasty and healthy reward” designed to help your dog “be healthy” by addressing both food and environmental sensitivities. Formulated with a single high-quality animal protein (egg) and potent bioactives, it is clinically shown to provide visible skin improvement in as little as 21 days and improve sleep quality by reducing night scratching.