Frozen peas, corn, and beans are easy to use as ice packs.
You can also make a reusable ice pack using the “recipe” below:
Mix 3 parts water to 1 part rubbing alcohol in a heavy duty zip-seal freezer bag (double-bag for extra security).
Place in freezer.
Usually ready to use in 2 hours.
Remember to always place a barrier between the skin and any ice-pack to avoid damaging the skin.