Hi, Eat a healthy, balanced diet and avoid eating strongly flavoured or spicy food. Cut down on coffee. Drink plenty of water to help prevent your mouth becoming dry. Chew sugar-free gum after eating, to stimulate the flow of saliva. This will help clean away any remaining food particles. Gastritis, lung & sinus infection may also be the cause of bad smell in the mouth. 90% of bad breath is due to a dirty tongue. So use rtongue scraper regularly, If your bad breath is caused by a gastrointestinal problem, such as an H. Pylori infection or gastro-oesophageal reflux disease (GORD) you may be referred to a gastroenterologist.
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