Treatment of bad breath can be appropriate to take anti-inflammatory drugs, such as metronidazole tablets, tinidazole tablets, cephalosporin, erythromycin. Bad breath is also caused by fire in the organism, especially the stomach fire and liver fire, so you can take drugs to clear heat and remove fire, such as clear fire gardenia tablets, Niuhuang Shangqing Pills, Niuhuang Detoxification Tablets, Gentian Liver Pills, etc. You can also drink herbal teas to remove fire, such as chrysanthemum tea, honeysuckle tea, bamboo leaf tea. Clinical treatment of bad breath, long-term anti-inflammatory drugs are not recommended for treatment, most take periodontal local medication and treatment, periodontal local can be in the application of iodine glycerin, minocycline hydrochloride to periodontal anti-inflammatory, at the same time need to do supragingival cleaning, subgingival scraping, tooth surface polishing and other periodontal treatment. Patients with bad breath should pay special attention to the maintenance of oral hygiene, brush their teeth carefully, and also need to cooperate with dental floss, gap brush to thoroughly clean the tooth surface, and do not eat too much in the diet, to light, easy to digest food, to avoid the exuberance of stomach fire and liver fire.