I wear a wrist band on my fret hand. Have had problems for almost ten years now with pain in my wrist. I stretch well, keep my hands warm and even use TigerBalm on occaision when I absolutely have to. I also stretch not only before, but after playing and any breaks I get to take. My problem though is simply having played for 25 years. I great friend of mine had played piano for roughly 50 years and developed Carpal Tunnel. He had surgery to fix it. Now he is back playing again. His case was weird though, his hands started turning sorta black like they were bruised. Don't mess around with carpal tunnel. It aint pretty.