Brush your teeth twice a day
Floss daily
Brush your tongue
Use an alcohol-free mouthwash
Drink plenty of water
Avoid smoking and tobacco
Limit strong-smelling foods like garlic and onions
Chew sugar-free gum
Clean dentures, retainers, or mouthguards regularly
Visit a dentist for cavities, gum disease, or other oral problems
See a doctor if the odor persists despite good oral hygiene