Choose an ointment, oil, or thick cream. These types of moisturizers do a better job of getting through your skin barrier. Light lotions have more water and may dry out your skin even more. Your doctor can help you pick the right moisturizer for your problem areas. He or she may suggest products that contain a natural compound called urea. It helps soften the outer layer of your skin cells so they shed more easily. Lactic acid is another substance that can help ease scaly patches. Let the moisturizer sink into your skin. You should give it a good 10 minutes.