Hi BW, I ordered a mother daughter set for me and Belle (I have arthritis too) and I've found it's really helped me, but to be honest I don't know whether it helped Belle at all. She has 2 teeth now and while I had the necklace on her for ages before her teeth came through, I'd actually forgotten to put it back on her for a few weeks before her teeth appeared and her mood didn't appear any different at all.

I might put it back on her just incase she gets any more - can't hurt!