Bad breath can be removed by treating the original cause or simply treating it. The easiest way to treat bad breath is to eat chewing gum. Chewing gum can increase the saliva secretion in the mouth, which can also remove bad breath. Light salt water gargle method can also remove bad breath: use light salt water in the mouth for a while to play the role of sterilization. Chewing tea can also remove bad breath in the mouth. Eat garlic and onion and raw and cold food. There is always a bad taste in your mouth. Chewing a few tea leaves can eliminate bad breath in the mouth. The first way to remove bad breath is to find out the cause of bad breath, and then do further symptomatic treatment. Pay close attention to personal oral hygiene, brush your teeth every morning after waking up, and brush your teeth before and after meals. (The correct way to brush your teeth is up, down, left, right brush, brush time to three minutes) carefully brush each tooth. Eat a light diet with more vegetables, fruits and legumes. To quit smoking and alcohol. The easiest way to get rid of bad breath is to use breath fresheners, and mouthwash, which are some simple ways to remove bad breath. If bad breath can not be removed for a long time, then you also need to use some targeted medication. You can eat some drugs to promote gastrointestinal peristalsis, so that the intestinal fecal accumulation of feces discharge, purify the intestinal tract, keep the intestinal tract open, clear bad breath, constipation, fire and other symptoms. So the way to remove bad breath can be first simple treatment, then active treatment of the primary disease.