Ive recently had to give up gigging because of health issues and its been very difficult to adjust. Ive tried selling gear but I really dont want anything to go so I decided to hang on to stuff.
Anyway, my point here is that I suffered the old hand issues and also had big problems with Tennis Elbow (outer arm) and Golfers Elbow (inner arm). I was taking anti inflammatories before gigs etc. It was horrible.
After years of suffering and seeking treatments etc my GP suggested Accupuncture. He had just done a course on it and wanted to try it on me. It worked!!! 4 Sessions and I was playing like John Entwistle (he he) but seriously, the arms and hands healed perfectly.
It doesn't hurt and I had 3 needles:
1) Forearm
2) Side of Hands
3) Elbow
Try it. It was a bit of a miracle for me. It may be for you too. There must be practitioners in your area, may be worth giving them a bell and finding out.
Hope it helps.