Around 2004 I started having a sore right wrist. I saw a specialist who said it was a repetitive stress injury and not carpal tunnel. He prescribed some exercises but it didn’t work. I moved to using my left hand to use the mouse, switched to ergonomic keyboards, tried a trackball, fancy ergonomic nice, adjusting my seat height, adjusting my desk height, and nothing worked. When I switched hands, my left wrist became sore too. Finally, finally, I tried using a pen tablet and the soreness disappeared. Turned out the motion that was killing my wrists was clicking the mouse with my finger and pushing my whole hand down to depress the pen instead worked out. I’ve been coding pain free ever since. The way to make a repetitive stress injury heal is to figure out a way to stop making that motion over And over again.