Get relief, heal faster, and get your life back without having to spend tons of money on expensive treatments. The soothing moist heat of this moist heat heating pad is most commonly recommended and used by medical professionals such as doctors, chiropractors, and physical therapists for helping patients to relieve pain and muscle tension. This Thermorelief heating pad can help give you relief from chronic pain or temporary conditions such as menstrual cramps and injuries to your back, shoulders, neck, knees, and arms. Recently redesigned to use safe, infrared heat (the same soothing heat from sunshine), this medical-grade heating pad is now available to provide you with maximum benefit. It is heavy and durable for many, many uses, and its plush flannel covering is made for ultimate comfort. The water-resistant cover is washable for a long, hygienic life-span. It also features a Velcro strap to hold it securely in the exact place that you need it. This model is available in 2 sizes. The king-size heating pad (27x14) is great for back or spine relief and the medium size heating pad (18 x14) is the perfect size for use on arms, shoulders, and elbows. This device is designed for intense heat. It’s important to know that if at any time this device becomes uncomfortable, turning the temperature down or shutting it off will quickly cool it down. It has an automatic shut-off or manual shutoff switch that can be pressed at any time during treatment. The pad can be used over clothing or a blanket to disperse the heat, but it should always be used with the flannel cover on. If you are seeing a medical professional, ask how often and how long your heating sessions should last. Temperature controls are the supplied temperatures or "wire" temperatures. The actual pad itself may be colder or warmer depending on ambient temperatures, insulation of the surroundings, and the fomentation system (which fluctuates the heat +- a few degrees to create the moisture sensation).