Hand rub is a type of topical medication that is used for the decontamination and sanitization of the hands. It is a solution that is applied to the hands and rubbed in until completely dry, killing germs and reducing the risk of infection. Hand rubs are commonly used in healthcare settings, but are also widely available for personal use. They are typically formulated with alcohol or a combination of alcohol and other active ingredients, such as benzalkonium chloride, that are effective against a range of microorganisms. Hand rubs are convenient and quick to use, making them a useful alternative to traditional hand washing with soap and water. However, they may not be as effective as soap and water in removing certain types of dirt and debris, and should not be used when the hands are visibly soiled. It is important to follow the manufacturer's instructions when using hand rub and to store it in a cool, dry place.