Pricked by seven needles connected to an electrical supply!

I went for my 2nd acupuncture session today at a Chinese practitioner's shop in Joo Chiat. The treatment was less painful than the first, but I still don't know if it's effective and if it will restore strength to my left forearm -- which had become very weak ever since I suffered from a repetitive stress injury (the doctor diagnosed it as Radial Tunnel Syndrome) to my left arm last June. :(