Cura-Heat Period Pain in an adhesive, air-activated heat pack to provide targeted relief from period discomfort and cramps. Cura-Heat Period Pain is a specially designed heat pack for the lower abdomen or lower back to help pr 12-hour warming relief from the aches, discomfort, and cramps associated with period pain. It helps to deliver heat therapy in an easy to use format, and works by increasing blood flow to the source of pain to decrease stiffness and relax sore muscles. Unique design This patch has a thin discreet design, making it ideal to use anywhere. Also, it is portable and can be used anywhere. This product is fragrance free and non-medicinal. How it works Cura-Heat Period Pain contains the ingredients such as iron, activated carbon and water, which oxidise and produce heat when it comes into contact with the oxygen in the air, to pr constant, comforting heat.