Hot and Cold Transition Baths have helped my hands feel better.  I fill 2 pitchers, 1 with hot water from the tap, and another with cold tap water plus a few ice cubes.

I dump my arm into one pitcher for 30 seconds, then into the other for 30 seconds.  I repeat about 3-5 times.   This helps by improving circulation to your arm.  I do this every day.