to prevent illnesses and infections, you should wash your hands regularly with liquid hand wash or hand sanitizer. the hands carry a lot of dirt and can easily transmit viruses so it's crucial we take our hand hygiene seriously. we should have hand washing in all rooms at home and in the office; this helps ensure we wash our hands immediately after they get dirty. and for emergencies or when we are out and about and don't have access to wash our hands properly, we can use hand sanitizer as a stopgap.