ThermaCare HeatWraps Menstrual Cramp Relief. Don't let cramps hold you back. ThermaCare Menstrual Patches relieve menstrual-cramp pain, providing soothing heat to relax muscles and ease the pain.Soothing Heat TherapyUltra-thin design conforms to your lower abdomen. Provides soothing heat for 8 hours of menstrual-cramp pain relief. Thin enough to wear discreetly under clothing. Can be worn on the move, during chores, when relaxing, or overnight.How It WorksHeat therapy is a natural remedy to relieve pain. Heat increases blood flow and helps block pain signals sent to the brain. Here's how the therapeutic heat of ThermaCare works.Heat & RelaxDon't suffer through menstrual cramps. Instead, cozy up with a ThermaCare Menstrual Patch. The heat provides soothing, deep muscle relaxation to ease the pain. ThermaCare Menstrual Patches offer: 8 hours of continuous heat to relieve menstrual-cramp pain An ultra-thin design that conforms to your lower abdomenright where cramps hurt most A small, discreet design you can wear under clothing Proven Relief Compared To Oral Pain KillersDid you know that ThermaCare relieves menstrual pain as effectively as ibuprofen or acetaminophen? In fact, 4 out of 5 people who have tried ThermaCare rate ThermaCare as "better than any pain reliever they have ever tried." Plus, ThermaCare provides 8 hours of soothing continuous heat for maximum relief.