Hello, Thanks for consulting HCM, Read your query, as you have bad breath this can be due to deposition of food debris , plaque , calculus in subgingival area of gums , dental caries , yeast infection in mouth , dry mouth , decreased salivation, habit of chewing tobacco , drug induced or upper respiratory infection like pneumonia , bronchitis , liver or kidney related disorder . For this you should consult dentist and go for oral prophylaxis , Regular use of mouthwash , warm saline rinses , use of waxed dental floss to clen interdendal areas of teeth , if your bad breath continues then consult physician and go for examination and treatment. Hope it will help you. Wishing you good health. Regards , Dr. Priyanka tiwari