I brush my teeth constantly but still have bad breath. What can I do?
Brushing and flossing are definitely the first steps to eliminating bad breath. Brushing and flossing remove bacteria responsible for creating odorous sulphur compounds and the food they feed on. However, bacteria hide not only on and around the teeth but also on the tongue under a layer of mucous. Here they are free to create odours.
It is best to brush your tongue daily or you may want to consider a tongue scraper. Both are extremely effective at removing this protective mucous layer from the back of the tongue.