Electric heating pads. These are the “gold standard” of heating pads. An electric pad is what you need if you have a chronic condition that requires regular heat relief.
Most kinds of cramps and spasms can be improved with a heating pad. This includes neuropathic spasms, restless leg syndrome, and menstrual cramps. Heating pads can help relieve many kinds of “all over” pain and sensitivity, including pain related to fibromyalgia, drug withdrawal, and vitamin D deficiency.