The muscles in the uterus contract to push out menstrual blood, and this can cause periods cramps that range from annoying to debilitating. Luckily, there is a natural solution that works for a lot of women : heat! Applied to the right spot, the heating pad delivers instant heat therapy which provides a warm, comforting sensation and soothes period cramps away. For best results, we recommended the product to be used about half an hour at a time; and at Heating Level suitable to you. Please switch off after use.