The best ways is to see your dentist who can recommends the right remedy to get rid of bad breath. Others are to wash your mouth once you wake up from bed and going to bed. Remember to brush your tongue as bacteria likes to stay under and on tops of the tongue. After each meals also wash your mouth with water to get rid of the food you take its time. Try to floss your mouth once a day to get rid of the food bacteria in your mouth and tongue. Reduce the intake of food that cause bad breath.