if the pain is in the wrist/tendons in the hands leading to knuckles, grab a cylinder that you can't close your hands around. and roll it. like this This is for bodybuilders and has some weight on it but you dont need that. When I do this and put heat on the wrist, it pretty much demolishes the pain. But yes, tingling is NOT GOOD. My physical therapist gave me the wrist roller and PT clay for my RSI, and I suggest trying the wrist roller and deffo seeing a physical therapist about that...!!!