You can do the same thing with a petroleum jelly gauze dressing. Used to use it as a "handwarmer" in the bush, it (still is) part of most of the US Army's first aid kits.

This is a 3"x18" petroleum jelly soaked gauze in an aluminized foil package.
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Member of the toughest, meanest, deadliest, most unrelenting -- and ablest -- form of life in this section of space, a critter that can be killed but can't be tamed. --Robert A. Heinlein