Bad breath can happen due to dry mouth, infected or decayed tooth, digestion problem etc. Finding the cause of the problem is very important to suggest a treatment. I suggest you to brush along with tongue cleaning, it may help you. And also consult a dentist.
Suggestions offered by doctors on Lybrate are of advisory nature i.e., for educational and informational purposes only. Content posted on, created for, or compiled by Lybrate is not intended or designed to replace your doctor's independent judgment about any symptom, condition, or the appropriateness or risks of a procedure or treatment for a given person.