Working through a muscle injury? Try this little trick. Take two cups of dry rice – it doesn’t matter what kind, unless you plan to eat it sometime in the future – and pour it into a thick sock. Then tie the end of sock into a tight knot. Now put it into your microwave and heat for 2 minutes on high.
Viola! You’ve got a heat pad. it’s pliable, effective, cheap, and very eco-friendly. Lay your injured area on it or rest on it your for 5 minutes, and repeat as needed. But be careful when you take it out of the microwave and use it – it could be very hot at first!