Ah, i am a big sufferer of dry skin in the winter time, it's mainly my hands, but sometimes my face too! I know that you're supposed to avoid hot hot showers, and stick to just "warm" water (which is a huge bummer for me, since I love hot showers!)
Also, be sure to moisturize as soon as you're out of the shower!! It helps to "lock in" the moisture on your skin. Try to avoid alcohol based products since those tend to dry out the skin.
I'm a big fan of Eucerin (i do some work with them, so we have it floating around the office), they've really helped my poor hands this winter. I'll usually put some on in the morning, and then maybe once or twice during the day too. Right now, the calming creme is my go-to, but I also like the daily skin balance line too, it's a little lighter, and maybe better for summer use. Both are great for dry skin!