I've been using them lately through our heat wave here in California and it's getting me through the burning so I can at least concentrate on a movie for a while.

I put the ice packs on a pillow, a dishtowel on top of the ice packs, and my feet on the ice packs. It numbs the nerves enough to give me some temporary relief. At least it works for naps and short term relaxation! If you don't have ice packs, bags of frozen vegetables, or whatever is in your freezer will work!