The link is not working for me anymore......

I had a TENS , then my chiro had an IFc stim, it was soo much nicer..
I bought mime off Amazon, I think under 70.00 at the time, still works great...
I’ve had it for about 10 yrs I think & used it quite a bit early on..occasionally now as needed for neck or low back pain..

The IFc is a much better device for healing and pain reduction and can treat deeper into the tissues. With much less of the tingly/stinging that TENS gives.

I did have a very good chiropractor & expert PT to get to the self care stage that I am at..Some aspects of TOS need pros to help you first, depending on causes & factors involved..
Like trigger point work, muscle spasms, top rib mobilisations, forward head/shoulder postures.....you can use our site search to find info on any of those topics or any other that you have..

A TENS or IFc will not fix it alone..you need all the above checked , as well as various self care things , as well a limiting any aggravating factors until you get pain & symptoms under control..