Wow, that seems very expensive, I buy mine from eBay and they are about twenty pounds for a good quality one. I agree about the pain relief though. The rebound pain is also very true you cant have it all your way, its just not fair.

Hi Floggy I also use a TENS unit that works on the principal of acupuncture Use it daily -- Can t use it if you have a pacemaker. I couldn't stand the pain with out it. . It costs about $424.00 but lasts for about 5 years and uses 2 9 volt batteries. Using it I was able to go about 15 years without meds. Now have to use it with meds. It's works for any kind of pain. Non habit forming. But you can get re bound pain. Then back off a bit from using it . You get a manual on how to use. (Phone number can only be seen by the question and answer creators) Accumed for information

Vera had that and it hurts me so they stopped it

Ask your Dr. for Physical therapy.