I've had the misfortune of early onset arthritis. No fun at all. Since then, I haven't been kind to my hands, getting the most use out of them while I can. A misguided plan, ive since backed off. Adding a few broken bones didn't help.
I was introduced to Tiger Balm through the martial arts crowd, I swear by it. Helps a lot!
But anything that gets you rubbing the joints does too, ive noticed that certian lotions and such help my hands, not so much because of their ingredients as much as their consistency. The more I have to massage it in, the better. Thus, Badger Balm is a favorite!
Coconut oil mixed with pure, raw cannabis, finely ground, is about the only topically administered version of medical Marijuana ive ever found, used specifically as an arthritis remedy, and for irritated skin. Also, it had frankinsence and Myrr, if that means anything.