Carex Thera-Med Cold Headache Band 1/5" H x 28-1/4" W x 2-3/4" D, Blue, Dual-Temp Technology, Reusable, For Acute Pain The Thera-Med cold headache band helps to relieve tension, migraines, sinus headaches and much more. This cold pack was designed with dual-temp technology which allows it to be applied directly to the body. The white side provides maximum strength cold therapy and the soft blue side provides gentle cool therapy. Use the headache band as an alternative or complement to over-the-counter drug treatments. Simply chill the headache band in the freezer and enjoy gentle cold therapy to relieve pain. Doctor recommended cold therapy. Conforms closely to body. Flexible when frozen. Dual sided to provide two temperature options. Easy and safe, use as directed.