7 Things to Know About Hand Sanitizer When to use it, how it works and why you shouldn't make it at home by Rachel Nania Getty Images One of the best ways to prevent a coronavirus infection is to wash your hands with soap and water — and when soap and water aren't available, public health experts say alcohol-based hand sanitizer is the next best option. But just how effective are gels and sprays when it comes to getting rid of dangerous germs, such as the coronavirus? Here are seven things you should know about hand sanitizer . 1. Hand sanitizer kills germs but doesn't clean your hands Soap and water reign supreme when it comes to infection control, but believe it or not, soap and water do not kill germs; they remove them. The duo's effectiveness boils down to the mechanics of handwashing. The rubbing and scrubbing of so...