I have a bad breath problem.i tried flossing, brushing twice a day and using a mouth wash but still.is there any kind of medication that can help with this?

Tonsilloliths/sinus: It is possible that the halitosis is coming not from your teeth or mouth, but from your throat or sinuses. Check your tonsils for white tonsilloliths (tonsil stones) which are notoriously bad smelling. These are easily removed with a long Qtip. If you are experiencing facial pain, pressure and one sided headaches near your eyebrow, you may have sinusitis. Use saline nasal washes to clear them.

Halitosis: Bad breath can be caused by many different factors, including sinus infections, periodontal problems, smoking, cavities, acid reflux, and your diet. Address all of these possibilities with your dentist and physician, and I'm confident that your problem will at least be minimized, and hopefully eradicated.