Bad breath which is also known as Halitosis is an oral health problem where the main symptom is bad-smelling breath. And the most common reason for this is poor oral hygiene. We should at least brush our teeth at least twice a day and dental floss every meal is very helpful to reduce bad breath. The food particles are left in the mouth and broken down by bacteria that produce sulfur compounds. Keeping your mouth hydrated and having proper oral hygiene can reduce mouth odor. If the symptoms persist, an immediate visit to your local dentist will be a good idea to check for further problems such as a decayed tooth or related oral infection.