www. oramd. com Bad Breath Cure Halitosis: The best way to determine if you have bad breath is to ask a trusted friend or loved one. Someone told me that sugarless gum can help with bad breath. Learn about the causes and treatments of halitosis: Yes, sugarless gum can help with bad breath by stimulating saliva flow. Saliva acts as a natural mouthwash cleansing the teeth of bacteria and the food particles that bacteria feed on.