Halitosis has more causes, may be caries, dental calculus, gastritis and other factors triggered, simply by taking vitamin B6 treatment is generally not useful. Vitamin B6 is a vitamin drug, moderate use of vitamin B6 can promote the healing of the oral mucosa, but not effective in relieving bad breath. If the bad breath caused by dental caries, the need for timely filling or root canal treatment, can alleviate the symptoms of bad breath, if there is calculus can choose to carry out ultrasonic scaling, if caused by gastritis and other factors of bad breath, can be used under the guidance of the doctor, Domperidone, Moxabeline and other drugs. Usually need to pay attention to personal oral hygiene, keep the oral cavity clean, diligent brushing and rinsing, but also need to maintain a light diet.