Use a keyboard wrist rest properly. Your wrists should not be bent or touch the pad while you type. Rest your wrists on the pad only when not typing. Drink plenty of water regularly during the day. An inexpensive bike water bottle will help keep water at your desk without chance of spills.
Experts recommend six to eight glasses of water daily.
Exercises Get a soft foam ball, hold it in your hand, and with your palm turned up gently squeeze ten to fifteen times. Do this several times a day with each hand. As with any exercise, do not do this if it hurts. Stretch your fingers apart, trying to make your hand as big as possible. Hold the stretch for a few seconds, then curl your fingers inward without clenching.