Might seem like a dumb question (if you know the answer!) but I've gotta ask it, since I don't.
It's that time of year when I restock the first aid kits in the cars, camper, wherever. Every first aid kit I've ever had has had both hot and cold packs in them. Sometimes they are the break apart, heat-in-the-field kind. Sometimes they're supposed to go in a microwave. The cold packs are either freeze-aheads, or also chemical snap things that get instantly cold when you're away from freezer.
So.....I've used cold packs from these kits with kids' minor sports injuries and boo-boos. But never hot packs. On my med-surg unit, we've got ice for a ton of things, but never hot packs.
When do you USE them?? For what?