But you can treat bad breath using these tips:
Rinse your mouth with plain water or mouthwash to get rid of food particles. It does not always have to be a flavoured mouthwash, which only serves to cover up the odour.
Brush your teeth regularly. If you have to talk to a lot of people after lunch, make sure to brush your teeth first. This should give you fresh breath that will make you feel confident about facing people.
Floss your teeth. Dental floss is like a string that you can rub in between your teeth to remove decaying food and loosen up accumulated plaque.
Wash or brush your tongue. Many of the bacteria that produce the bad smell from your mouth live on your tongue, particularly its tip. You can wash your tongue with a terry cloth washcloth and rinse it with water. Make sure to brush it too after brushing your teeth.
Chew gum. If you can't brush your teeth due to certain circumstances, always bring a sugarless gum with you to loosen the food particles in teeth spaces and cover up the odours from your latest meal. Avoid gums with sugar though, because they will only feed the bacteria and worsen your stinky breath.
But how do you know you have stinky breath? Try licking the back of your hand, wait for 5 seconds, and smell it. If it has a bad smell, trust that your breath smells the same way too.