Hell, YES!

As mrsmac said, we have one for Sam - he cut his first two teeth simultaneously during church one morning and the only clue we'd had that he was even teething at all was that he'd been off his food for the previous week. Didn't figure it out until later, though. He has had grizzles and pain when his teeth move around, but it appears that Sam takes after his mother and has a shocking time with teething, so anything that helps is good in my book.

What mrsmac didn't tell you is that I also wear one myself. I have severe rheumatoid arthritis and figure that anything that's meant to help pain and inflammation is bound to help... I can tell you in absolute and definite certainty that they DO work, and damned well at that. Mine arrived when I was in the middle of a bad flare and I was experiencing pain relief within an hour of putting it on. I don't take mine off now - ever.

BW