You can’t be too sure, most bad breath cases is due to acid reflux and dietary conditions. Unless you have a lot of cavities that’s trapping food. Get it checked with a dentist.

Dear Patient. There are a lot of reasons for bad breath, including improper digestive system, deposits on tongue and teeth etc.to name a few.  You will need a thorough clinical examination by a dental surgeon to find out the root cause of your problem and the rectification can be done likewise. Medication DO NOT treat bad breath , although some chewable tablets or condiments can for a short span of time mimick the smell. Do visit a  dentist . Stay healthy .