Halitosis is not how to cure to eradicate this statement, may be bad habits, oral diseases, gastrointestinal diseases and other reasons, can be improved through the habits of life, caries filling treatment, taking antibiotics and other methods to alleviate. 1. Bad habits: bad habits such as not brushing your teeth often and not rinsing your mouth after meals may cause bad breath. It is recommended to develop good habits of brushing your teeth in the morning and evening, rinsing your mouth after every meal, or using mouthwash once in a while to alleviate bad breath. 2. Oral diseases: If there are untreated caries, residual roots and crowns, bad restorations and other oral diseases, you should fill the caries in time, remove the residual roots and crowns that can not be retained, and remove the bad restorations to alleviate bad breath. 3. Gastrointestinal diseases: Gastrointestinal diseases such as peptic ulcer, chronic gastritis, functional dyspepsia and so on may cause bad breath. It can be relieved by taking oral antibiotics such as clarithromycin capsules combined with amoxicillin capsules. If the patient occurs bad breath, should be timely to the hospital, under the guidance of the doctor, follow the doctor’s prescription medication, clarify the cause of the disease, take the appropriate treatment plan.