Ask your farrier, if they are not willing to help you and explain in great detail what is causing the issue, find a new one because he doesn't care. Keep the foot moist, it makes the hoof more elastic, and less prone to chipping and cracking. Dry conditions make it worse. I have rock hard ground right now and my horses feet look great. A little Hoof Heal 3 times a week, and water to stand in works great.