To solve the problem of bad breath: 1, must be in this aspect of oral hygiene to strengthen more attention, to develop the habit of brushing your teeth in the morning and evening, rinse your mouth after meals, do not let food residues in the mouth for too long, to prevent food residues in the mouth fermentation decay, thus producing bad breath smell. 2, fire, stomach fire may also lead to the phenomenon of bad breath occurs. This time you need to eat heat and fire food, such as lotus seeds, lilies, pears, horseshoes, grapefruit, bitter melon. You can drink honeysuckle tea, chrysanthemum tea, mint tea and so on, these can help the body to lower the fire, thus alleviating the problem of bad breath caused by fire. 3, if there is oral disease in the mouth may also have bad breath, then you need to go to a regular dental institution, ask the doctor to check whether there is tooth decay in the mouth, or caries, wisdom teeth, periodontitis and other problems. If there is to treat these oral diseases, after the treatment of bad breath will also be relieved.