Walgreen's has them, and RiteAid too.

I get mine in bulk at Costco. 120 to a pack. I use them often for my feet and fingers, and sometimes back. (I stack them 2 or 3 on the back.)

Only the methyl salicylate ones have active pain reliever.

I haven't tried the new fixey ones that are approved by the FDA.
They are expensive! Like $8.00 for ten.

I don't think the opiates we have now are "good" pain meds.
They increase pain over time. So you have to keep upping the doses etc.

We need meds that take care of pain, without all that nasty baggage.

For your hands you can try, tepid water soak with epsom salts.
Put in 2-3 oz in a dishpan sized container or sink. Works on the feet and whole body in that bathtub. (have to use a bit more for a whole tub, like 6-8oz epsom). If you take a bath in them, watch out, because they make things slippery. So be careful getting out. Do not use hot water either. Just tepid or lukewarm. It can work wonders for some types of pain.