I used TENS last time and twice I accidentally turned it up instead of down.....certainly took my mind of the labour pains!! I was pretty happy with it, not really sure if it did much other than take my mind off things for brief periods. I was only in labour for less than 2 hours, so wouldn't be sure if I could've gone longer with no pain relief but just TENS. I hope I couldve. I will think about using it again. It did get annoying after a while and I just ripped it off (probably last 20 mins).
xo