Cura heat period pain is a specially designed heat pack for the lower abdomen or lower back to help provide 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 thi