Get a tongue brush...bad breath is the odor from the poop of tooth decay causing bacteria. It's that white film on your tongue where they call home. Kill them where they breed, sleep, and poop...on your tongue. Don't use a tooth brush on your tongue...that just makes them horny and they reproduce. Only a tongue brush can get deep in the crevices of your tongue to pull them out so you can spit them out. It will make your tongue feel clean and smooth...not like bug shit.
The main cause of bad breath is poor oral hygiene with carious teeth but if that is not the case then cause can be due to sinus problem or tonsilitis and for that you have to go to physician as using good toothpaste and mouthwash will not help. Sometimes bad breath can be due to stomach problem or other systemic problem. So it is better to go to physician and get the treatment done, if he is maintaining good oral hygiene. For more info on bad breath you can check this link in our website...... http://www.identalhub.com/dental-why-tonsils-cause-bad-breath-679.aspx
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