###Human: Why is there bad breath in spite of flossing and using mouthwash? ###Assistant: Hello. You do not need to be frustrated. It is very common. There are various factors affecting your bad breath. You can try these things to improve your oral hygiene. Avoid foods and beverages that cause bad breath, eat more fruits and vegetables, take sufficient amount of water, try sugar-free gum if your mouth tends to get dry. Brush your teeth at least twice a day. Make sure to reach the gum line as well as tooth surfaces. Floss at least once a day. Rinse with a mouthwash twice a day. If you do not like the odor of your mouthwash you could change its flavor. Sometimes when we are empty stomach for a long time, bad breath still comes out of the mouth. Our digestive system also affects our breath, so take care of your digestion. Have a great time.