For bumps, bruises, burns, bites, sprains, broken bones, and getting trampled by an elephant.
Heat or Ice? At least once a summer I jam a finger playing basketball. Within minutes, the finger turns a sickly purple-red and swells up to twice its normal size, and then I can’t move it for a week.
Or at least that’s what used to happen before I took icing so seriously. Now I rush for ice the instant I get hurt, and it makes all the difference in the world. Within a day or two, I get my full range of motion back. It doesn’t swell up nearly as much, and it heals a lot faster.