Treatment of halitosis first of all to clarify the causes of halitosis, in order to treat the root cause, mainly seen in the following cases: 1, dental calculus, gingivitis caused by, mainly with the usual inattention to oral hygiene, smoking, drinking tea and carbonated beverages related. Gingivitis can be oral honeysuckle granules, dental calculus can first clean teeth, scaling after applying iodine glycerin, oral artificial oxymorphone metronidazole, prevention of infection, while paying attention to morning and evening brushing, rinse mouth after meals, flossing with water; 2, the spleen and stomach damp heat caused by, in addition to bad breath will be accompanied by yellow tongue, appetite loss, mainly due to spicy diet, irregularities. You can take oral Huo Xiang Qing stomach capsule to clear damp heat treatment, you can also take oral Niu Huang Shang Qing tablets, Niu Huang detoxification pills, etc., usually you can drink water with dandelion; 3, allergic rhinitis, sinusitis, due to the mouth and nose, nasal inflammation can also lead to halitosis, you can take oral nasal abyss and orifice particles, rhinitis tablets, loratadine tablets treatment, rinse the nasal cavity with saline.