Paraffin wax is an alternate form of heat application. The wax works as an insulator, sealing in the heat from the wax, as well as the heat generated from the body. The heat encapsulated by the wax, can relax sore muscles and tendons, reduce inflammation and promote circulation in painful joints and soft tissues. Paraffin therapy is an effective method of applying heat to relieve pain and stiffness in the hands and/or wrists. Occasionally a moist hot pack will also be used in conjunction with paraffin wax.