The last thing you want to do is to get close to someone when you have bad breath. Garlic, onions and certain foods can make it even worse. Listerine is the best mouthwash I have ever used. I’ve tried many different brands, including store brands-which are probably the worst, and nothing compares to Listerine. It kills germs and completely abolishes bad breath for hours. I smoke, but I don’t like my breath to smell like I do, so I use Listerine after brushing every time, and my breath feels fresh and clean every day-all day long.