► Add water to the bag 3/4 full. ► Place the cap on top of the bag and turn it clockwise until you cannot turn anymore. ► Apply the bag flat on desired area to be treated. For Ice Bag: For best results, add ice cubes to increase the cold effect. If ice cubes are too big, crush it first and then add. For Hot Bag: Add some cold water to keep the water temperature at a safe and comfortable level. For best result, pour 50°C- 60°C (recommended) hot water into bag and screw the cap on before use. Notices: Do not pour 100°C boiling water directly into the bag.