I have the same problem , all that is needed is to apply cream to your feet and always wear socks right after doing that
My Feet Are Always Dry What Is Wrong With Them?
I have no idea why your feet are always dry, but I have something that might help. Every night put almond oil on them, it is good for softening and moisturising skin. My feet began to get dry and rough recently and since using almond oil they have vastly improved!