Your bad breath could be the symptom of gum disease. If brushing your tongue and using mouth wash is not enough to make your bad breath go away, you need to go to your dentist and have your gums inspected. The bacteria that develop in your gum could be responsible for your bad breath.
Rinse your mouth out after every meal. Brushing your teeth after every meal is ideal. Of course, many people have jobs and places to be. It isn't always possible to brush your teeth after eating. If you can't brush, rinse. Rinsing will rid your mouth of some of the food left behind and neutralize pH levels.
Brush all of the surfaces of your teeth. Many people think that they only need to clean the surfaces that are visible, but bacteria likes to hide on the hidden parts of teeth. These are the areas where various dental problems can occur. When you brush, make sure to brush the outside, inside, and chewing surfaces of every tooth.