My hand get dry in the winter and sometimes crack. Blistex works well for the lips, could it work remarkably well for the cracks on my hands?

Winter dry skin. Any form of moisturizer is going the help, the thicker the better. If you have significant cracks in your skin, the addition of a prescription strength cortisone (like traimcinolone acetonide 0.1% cream or ointment) will help a lot as well. Otherwise avoid getting your skin wet or soaked.
Superglue. Works great for those little cracks/splits on the fingertips. Drink plenty of water and lotion hands regularly.