I have four dogs and no itching problems with three of them. I have a 4 year old Schnauzer that has severe allergies. I had him tested and he is allergic to everything. All kinds of food and grasses. However since I started cooking all my own dog food, his problems are less. I put olive oil in their food and that seems to give them a silky, soft and shiny coat. If it is dryness a little fish oil pill would go a long way to helping their problem.