Dry and itchy skin is a common sign of poor skin and coat health. A dog’s skin and coat health plays a crucial role in their overall health. It helps prevent infections, fleas, and ticks, and regular brushing can be calming in anxious dogs. A dog must have a balanced and rich diet filled with essential nutrients, fatty acids, and vitamins to support skin and coat health. Omega 3 and Omega 6 fatty acids can be found in fish oil.