Bad breath is caused when food residues are left in the mouth without paying attention to oral hygiene, which can easily produce bacteria. If there is no disease, the usual attention to oral hygiene and improve the diet can help to cure bad breath. If the disease is caused by bad breath, general care can only temporarily relieve bad breath, there is no simple cure, but also need to go to the hospital to find the cause, targeted treatment to cure bad breath: a. General care: 1, oral cleaning: adhere to the morning and evening brush teeth, rinse after meals, brush teeth for as long as possible not shorter than three minutes, taking into account all parts of the mouth. You can also use dental floss to assist in cleaning, or clean plaque and calculus by scaling; 2, dietary management: reduce the consumption of food with excessive odor, such as curd, durian, etc., eat more fresh fruits and vegetables, drink more water, keep the bowels open, you can also eat some chewing gum and other fresh breath food. Second, the treatment of the original disease: If the halitosis caused by disease, there is generally no simple method of eradication, you need to pay attention to the general care of the oral cavity on the basis of the treatment of the original disease. 1, oral diseases: such as gingivitis, periodontal abscess, wisdom teeth, caries, etc., can cause bad breath, often accompanied by swollen and painful gums, easy bleeding to touch, tooth color changes, etc., the presence of infectious factors to anti-infective treatment, such as amoxicillin, metronidazole The formation of abscesses can be incised and drained, wisdom teeth repeatedly caused by inflammation is recommended to the professional hospital elective extraction, caries can be treated by dental filling, restoration, extraction, etc., oral problems can be solved after the halitosis can be eradicated; 2, gastrointestinal diseases: such as intestinal obstruction, gastritis, etc. Bad breath can be caused by digestive dysfunction, gastrointestinal lesions often accompanied by lack of appetite, abdominal pain, bloating, nausea and other manifestations, intestinal obstruction requires drugs or surgery to lift the intestinal obstruction, to keep the stool unobstructed. Can be under the guidance of a doctor, according to the cause with drugs that inhibit gastric acid secretion such as omeprazole, probiotics such as bifidobacteria and other drugs for the cause of treatment, general disease cure bad breath can also be eradicated; 3, other: people with chronic diseases are also prone to halitosis, such as diabetes, and abnormal metabolic function, there can be more drinking and more food, weight loss performance, chronic diseases caused by halitosis is more difficult to achieve the root cause, can be controlled The disease is relieved; patients with atrophic rhinitis, chronic maxillary sinusitis and other diseases can also appear halitosis, the need for treatment of the cause, nasal irrigation, the application of antibiotics as prescribed by the doctor, if necessary, surgical treatment, the original disease is cured halitosis can generally be cured.