Microwave Activated. Deep Penetrating Moist Heat. Provides Fast Relief. Eases painful sinus pressure Relieves cold & flu symptoms Reduces inflammation Clears congestion Thermalon Relieves Pain Naturally. Naturally Hydrating Non-Allergenic Odor Free Washable & Reusable Patent Pending Hydro Pearls. Moisture is continuously absorbed from the air and released as deeply penetrating moist heat when microwaved. Use Thermalon and experience hours of relief How it Works The Thermalon Sinus Compress contains special patent pending Hydro Pearls that continuously absorb and store water molecules from the air. There is no need to add water. When microwaved the absorbed water is released as clean soothing moist heat. Microwave Activated Moist Heat A Thermalon moist heat therapy treatment provides deep penetrating, temporary relief from sinus pressure and congestion by reducing swelling and opening nasal passages and sinus cavities. It also relaxes the facial muscles, alleviating the pain associated with stress, tension headaches and TMJ. Fast Acting Natural Relief We believe pain should not get in the way of living life to its fullest. Since our inception in 1986, our mission has been to provide natural relief from pain that is safe, effective and easy to use. Our products are used in clinics, hospitals and homes around the world. Suggested Use: Microwave according to instructions in package, touch test and apply for up to 20 minutes of deeply penetrating relief. UPC: 041533243328 Weight: 0.88 lbs