We all know that bad breath is caused by bacteria in your mouth. But then why does mouthwash make bad breath much worse for many people? It turns out that there are good bacteria and there are bad bacteria, and only bad bacteria will cause bad breath, while the good bacteria actually helps eliminate bad breath by outcompeting the bad bacteria.
So the solution is simple: swish your mouth with some alcohol-free mouthwash, and then eat a cup of refrigerated yogurt (shelf-stable and frozen yogurt might not work). Repeat this process three times in three weeks, and then you shouldn’t have bad bacteria for years to come. I have actually tried this on my own mouth and it’s been several years since anyone could smell my breath
