Can you overuse a TENS machine? What would happen?

[Tinker]

Got one today on the advice of a wonderful mnner and it was fanatstic of my sore, sore back. But it says to only do 15 mins x 2 per day. Not fair.

bump

try again

My dad has just got one from his GP for his bad back who told him to se it for 2 hours a day.

Oh good. I love it!