ditto on the previous....
I would get a really good, rich natural moisturzer like pure shea butter. You can find it at that very popular auction site - just make sure you get pure shea butter - not the shea butter based lotions. Or I've found that the Burt's Bees Hand Creme (the really thick stuff) works well. At night, apply this to your hands, with plenty on the tips, and then put on a pair of light cotton gloves. This will help to moisturize and heal. In the morning, moisturize lightly with the shea butter, let it sink in. Then apply a thin coat of petroleum jelly. Keep a small container with you, to use.
Natural plant and animal based oils moisturize and sink into your skin. Petroleum based moisturizers don't. But the petroleum jelly *does* sit on top of your skin, keeps out water, and keeps your skin from drying out and cracking. It provides a protective layer, while the shea butter moisturizes and heals.
hope this helps!