Please excuse me if this has been answered somewhere. I've searched unsuccessfully.

Is there any good, new?, alternative to surgery for CTS, which started a year ago, but has rapidly worsened to be enormously annoying. Not painful. Just numb, which has become disabling. And accompanying loss of strength. Mostly Right (dominant) hand, but Left is trying hard to catch up.

The complication is that I live overseas, where specialist doctors don't live. My GP doctor has little knowledge of Carpal Tunnel issues. And flying around the world to get useful info is... even more inconvenient than the disability. Exercises (soft ball, flexing, etc) no longer have any effect (and quite minimal previously). And my brace isn't very useful either.

I've read that cortisone injections are possible, but very temporary. Is there anything else? Like a miracle drug that dissolves excess bone selectively?

Having surgery by a general surgeon isn't very attractive. Acquiring a "dead" hand from accidental nerve damage would only worsen (severely!) the problem. And I don't believe that a joint replacement would be a wise choice. So what else is there?