When I was a young man I suffered from tendonitis in both elbows. I was unable to work even though I had my own earthmoving business.
I tried the following over a two year period..
1/ massage by physiotherapists.
2/ cortisone injections
3/ acpunture
4/ hypnosis
None of these attempts at a cure were successful.
In desperation I purchased and wore a small copper bangle on my left wrist.
My doctor laughed and told me that this suggested remedy was an old wife's tale.
Old wife's tale or no,within two months the tendonitis had completly vanished and it has never returned.
This all happened 40 years ago and I have worn the bangle 24 hours a day every day since.
Maybe the copper bangle cure is , as some say, an old wife's tale or, as others say, "It's all in the mind..."
Either way I believe that it worked for me...The bangle stays for the rest of my life..!