Hand hygiene refers to the practice of keeping hands clean to prevent the spread of germs and infections. This can be achieved through regular handwashing with soap and water or using hand sanitizers that contain at least 60% alcohol. Proper hand hygiene is essential in various settings, including homes, schools, and healthcare facilities, to protect both individual and public health. Effective handwashing involves scrubbing all parts of the hands, including between fingers and under nails, for at least 20 seconds. It is especially important to wash hands before eating, after using the restroom, and after coughing or sneezing. Maintaining good hand hygiene helps reduce the risk of illnesses, such as the common cold and COVID-19.