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How to ice a sprain 
Buy an elastic bandage wrap. 
You want the bandage or fabric to have some stretch to it, and be long enough to wrap around your foot and ankle several times. 
If you do not have a bandage wrap, any strip of fabric, such as cotton or t-shirt material, will do.
Wrap a single layer of bandage around the sprain. Place the end of the bandage on the ball of your foot, and roll the bandage over the top of your foot.