There are many solutions to bad breath, need to be given according to different causes of symptomatic treatment, such as oral causes (oral diseases) to brush teeth, maintain oral hygiene, non-oral causes (digestive diseases) to actively treat the primary disease. 1. Oral causes: such as oral diseases, such as dental caries, periodontitis, mouth ulcers, etc., to actively treat the oral pathogenesis, if necessary, can be given antibiotics, such as artificial oxalic metronidazole capsule, etc., usually to maintain oral hygiene, brushing your teeth diligently, clean the tongue, rinse your mouth after meals, flossing to clean between the teeth in a timely manner of the food debris. 2. non-oral causes: such as digestive diseases, such as peptic ulcer, reflux esophagitis, etc., mainly caused by gastric acid reflux oral cavity, you can take acid inhibiting drugs such as omeprazole capsules, etc., usually the diet should be light, easy to digest the diet is mainly, eat less cold, irritating, greasy food, because this kind of food is very easy to cause gastric acid reflux, resulting in halitosis. When the symptoms of bad breath by improving oral hygiene did not see a significant improvement in recommended timely medical treatment, to be treated under the guidance of a doctor, do not self-medication, to avoid adverse drug reactions.