Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Finally relief from constant hand/wrist pain !!

I create detailed drawings and use a mouse for long periods of time. For the last year I've had almost constant pain in the top of my hand and in my wrist area. I tried pads, gloves, ACE bandages and pills. Finally I realized the pain was caused by holding my index/ring finger on my right hand poised over the right mouse button that was causing the pain. A trackball won't allow the precision dragging lines and symbols because I tried a really nice optical one. This Evoluent vertical mouse solved the problem and I am now pain free. YES !! Too bad I paid +$150 to doctors and other products.