Muscle pain can really bring you down and the body ache almost makes you immobile. Muscle pain can be caused due to stress or overworking. At times even injury can cause your muscles to ache. Therefore, a good pain relief product is good to have at hand. The Shenao Hot Water Bag is easy to use and relieves pain in the most natural way possible. Analgesic ointments might cause allergies for those with sensitive skin, but this hot water bag is skin-friendly and can work effectively, to get you moving again. It is air tight, making sure that the hot water does not leak out and cause a mess or any accidents.