I have read research and reviews saying TENS (transcutaneous electrical nerve stimulation) devices are effective in reducing pain and improving circulation and muscle tension. However, with repeated daily use, tolerance (meaning the product loses some of its effectiveness) has been shown to occur as early as the 4th day.

For those of you who have used TENS units, what has your experience been?

1) Did it work for your endo pain, cramps, etc, and did you experience any tolerance?

2) If you did or did not experience tolerance (and it works), how frequently did you use the device, and what intensity of the stim did you use?

Thank you so much!

Ps, I’m considering buying one today but it’s $150 and if it’s only going to work for a short term period, I obviously don’t want to spend the money.