If you're in that situation, tell them to use an Ace wrap
with light compression and each day tighten the Ace wrap
a little more until they are able to use TED hose with minimal discomfort.
Use RICE: 4 Simple Steps to a Speedy Recovery, which are Rest (stop doing whatever caused the injury, move injured area as little as possible); Ice (placing ice on the injured area will decrease swelling and promote healing) for 10 to 20 minutes, always checking skin for frostbite -- be careful; Compression (another way to decrease swelling is by compressing the injured area) using an Ace wrap
and wrapping from the area farthest from your heart going up towards your heart; and Elevate (the final way to decrease swelling and promote healing is to elevate the injured body part so it is above your heart).
We can't use a sling or an ACE wrap
(well, you can, but you'll look weird and it won't help.