Patients with symptoms of bad breath can usually use chewing gum, oral freshening sprays and other substances to temporarily relieve the odor in the mouth. But if you want to relieve the symptoms of bad breath for a long time, you also need to treat the causes of bad breath, the more common ways to relieve bad breath are to ensure oral hygiene, improve gastrointestinal function, maintain respiratory health, etc.: 1. Ensure oral hygiene: bad breath is mostly caused by gingivitis, periodontitis, bleeding gums, large amounts of calculus or piles of filth, etc. If a large number of bacteria are stored in the teeth, it may produce Bad breath symptoms, it is recommended that patients in the morning and after the meal in a timely manner for the correct brushing and rinsing, regular dental cleaning to the dental hospital, for the relief of bad breath has a very important role; 2, improve the gastrointestinal function: If the patient has a diet is not digested and other conditions, may cause food stored in the gastrointestinal, acidic and rotten taste back to the mouth, causing bad breath. In this case, patients are advised to treat stomach disorders first, and the symptoms of bad breath will improve. It is recommended that patients consume more high-fiber foods or vegetables and fruits, which have a certain role in promoting the digestion of drinking food, and appropriately increase exercise to promote gastrointestinal peristalsis and enhance the digestive function of the diet. 3, maintain respiratory health: some respiratory diseases, such as sinusitis, pharyngitis, tonsillitis, bronchitis, pneumonia, etc. may also cause patients with symptoms of halitosis, it is recommended that patients Pay attention to the health of the respiratory system, actively treat the primary disease and avoid smoking, which can also contribute to reducing the symptoms of halitosis. In addition, patients can chew some tea, orange peel, grapefruit and other foods, which also have a certain role in promoting the relief of halitosis. Patients are advised to drink more warm water, which has a certain effect on the relief of halitosis caused by various reasons, and if the problem is serious, seek medical attention when necessary.