Just another good way to help relieve chronic pain. Amazon holiday sales and market oversaturation are bringing them down to US $60-70 now. Gave the spouse one for Christmas, she used it on her shoulders (rotator cuff) and back and didn’t turn it off for at least 45 minutes.
I’d also recommend a TENS unit, can also be found for cheap ($20-40). Both can vastly improve pain management without relying as much on medications.