Ice is Nice
Injury often causes inflammation - pain, swelling, redness, and warmth -- in the injured area. Cooling down inflamed tissue is a basic way to treat most injuries. Just be sure not to put ice directly on skin - no sense damaging your skin on top of your other aches and pains! Cover your skin with a couple of layers of plastic wrap. Put ice on top, and then hold it in place with an Ace bandage or stretchy clothing. Crushed ice in a sealed plastic bag works well, as does a bag of frozen veggies - it conforms nicely to the shape of your body part (and you'll have an already-thawed side dish for supper!). Keep the cold in place for 20 minutes, stop for 10 minutes, ice again for 20, stop for 10, and so on.

Heat is Neat
Heat often feels good on walking-related injuries, though it doesn't have an anti-inflammatory effect. Used after any swelling has gone down, hot tubs, whirlpools, and heating pads can relax your body and mind and help the healing process.