When you have your period, you can apply a salt bag, but you should apply a hot salt bag, mainly because a hot salt bag can promote local blood circulation, which can make the menstrual blood flow more smoothly, reduce the discomfort, and reduce the symptoms of lower abdominal pain. In addition, salt itself has an anti-inflammatory effect, so using a hot salt bag on the lower abdomen can be beneficial to menstruating women. You must pay attention to warmth, if you do not pay attention to warmth may lead to dysmenorrhea, or you can also use hot water bags on the lower abdomen, can improve the uncomfortable feeling of menstruation, will reduce fatigue, you can also use hot water to soak your feet and can take a hot bath, but must be a shower, not a sitz bath, can reduce the uncomfortable feeling caused by menstruation.