GEL PACKS For Sprains or Bruises
Mix 3 cups of water and 1/4 cup of rubbing alcohol into a freezer bag. Shake lightly to mix, then place in freezer.
The mixture will not freeze solid, but form a slush like gel.
mix up bags in several different sizes.
Larger bags for knees and arms, smaller ones for ankles and wrists. And of course, they travel well in an ice cooler.