In the case of body discomfort, the Renewa Hot Water Bag is utilised as a Heat Therapy treatment. In the winter, it can be used as a natural body warmer and to relieve muscular pain. This Hot Water Bag can be used on the back, as well as on and around the painful area. It relieves tension and causes relaxation. Joint problems, muscular cramps, menstruation pains, stomach and back aches are all relieved instantly. It can be placed over the elbow thighs or on the knee joints to ease pain