Epsom salts are made of hydrated magnesium sulfate, a water-soluble chemical that can sedate the nervous system, relax muscles, strengthen joints, and reduce swelling and inflammation when absorbed through the skin. Epsom salts can be found at drugstores, and because of their accessibility and relief properties, they are an efficient way to provide relief for a swollen ankle.
Add 1/2 cup of epsom salts to a small plastic basin of warm water. Wait two to three minutes for the epsom salts to dissolve. If they are not dissolving, add warmer water.
Insert the affected foot into the plastic basin. Make sure your swollen ankle is completely covered by the water and salt.
Soak your foot for 30 minutes and then pat it dry. Soak it once a day until your ankle is no longer swollen.