Easy to Use Sock ice pack is easy to use, as simple as wearing socks.Sock ice pack effectively supports and stabilizes injured or vulnerable areas without sacrificing mobility. Enjoy life to the fullest Relieve constant pain and swelling in your ankle and foot with our Gel Cold Therapy Sock! Using targeted compression, Help support stiff and sore muscles andjoints. Don't let injuries and inflammation affect your daily passions! Cold Therapy Put in a freezer bag and put in the refrigerator for 1-2 hours.lf it causes discomfort,remove from body immediately. You can also keep your sock in the freezer so that its always ready! Hot Therapy Remove from plastic bag Make sure it is at room temperature. Microwave for 45 seconds, if more heat is needed,microwave in 5-second increments. If you feel hot, you can cool it for afew minutes before using it.