Bad Breath may due to dry mouth,  medical diseases such as asthma,  pulmonary tuberculosis, liver n kidney disease etc,  decreased water intake,  type of bacteria present in your mouth, food lodgement in cavities of teeth, gum disease etc. Get once cleaning n polishing done,  hourly take 100ml of water,  clean immediately after food wt water, use your tongue to remove any food debris in mouth, fill wt dental cement for any cavity present. Brush twice a day. Use mouth freshener

You can get scaling and polishing done from your near by dentist they will check and tell you is the problem related to oral cavity or other systemic

Bad breath is related to many systemic or oral diseases. It can be caused due to deposition of calculus over your teeth, where bacteria can grow and cause bad breath.. consult a dentist get your scaling done and use chlorhexidine mouth as prescribed.

Bad breath due to poor oral hygiene,food accumulated which barbours bacteria..

Hi bad breath called as helitosis is generally due to some bacterias which produce sulphur compounds in mouth. It can be cured by eradicating these bacterias from mouth.