Rael Heating Patch for Menstrual Cramps Sometimes I don't mind being chained to the couch in order to soothe my period cramps. However, on the days when I need to move around to get chores or errands done, I stick the Rael Heating Patch for Menstrual Cramps ($6 for three patches) on the outside of my underwear. These essential oil-infused, self-warming patches offer heated relief for up to six hours. Image Source: getrael.com Rael Heating Patch for Menstrual Cramps $6 from getrael.com Buy Now