Heating Patch for Menstrual Cramps Heating Patch for Menstrual Cramps Rael Heating Patch is an easy-to-use adhesive patch that heats up to an ideal, therapeutic temperature to promote blood flow and help muscles relax, soothing menstrual cramps and providing comfort for up to 6 hours. Infused with Dandelion Root, Rosehip, Juniper and Jasmine, proven to be effective in alleviating abdominal discomfort, reducing swelling and bloating, and improving mood and energy.. Ultra-thin discrete design. Individually wrapped. Free from toxic ingredients. Set of 3 patches. Remove paper from adhesive backing and adhere patch to undergarments in the abdominal area. Must be used immediately after opened. Do not use directly on skin. RUHL-WU2. RAEL-HP-V20-01. From tackling the taboo to beyond-functional products, Rael is on a mission to make periods better by providing holistic feminine care that actually works. Innovative, natural, and effective solutions support you during all phases of your cycle, including their organic cotton period care, everyday feminine hygiene essentials, and skincare products specially formulated for hormonal changes throughout the month.