Dryness of the mouth is another reason why people have bad breath. It is more often the reason to children since they have habits of sucking objects including blanket that quickly dries the mouth. For adult, dried mouth is often caused by poor saliva production and using mouthwash that contains too much alcohol. If drying of the mouth can be minimized by washing it off regularly by drinking plenty of water, the thriving of bacteria on your mouth is lessened, thus curing bad breath. 8. Quit smoking. Tobacco products contribute to bad breath. Smoking tobacco also causes some diseases known to characterize themselves by developing bad breath. Apart from some medical conditions that do not directly affect the mouth such diabetes and liver problems, the main reason for bad breath usually is the widespread growth of such bacteria. Another main reason (or probably a cause too) is the accumulation of yellow or whitish film on the surface of the tongue. Advertisements declare it: mouthwash kills 99.9% of bad breath causing bacteria. This is quite true. But if you try so hard to kill way beyond the 100% mark by using mouthwash excessively, then you are inviting worse breath. Take note that some commercially produced mouthwash products contain too much alcohol. However, many of us still live and trust the art and antiques caught from the middle ages or the Stone Age for that matter. Well, these people have good reasons for that. Obviously, a number of modern devices don t truly pave the way for curing the condition. They just offer temporary and often, ineffective solutions. One of the common exercises is through licking your tongue into your clean wrist. Smell the trace of smell after 45 seconds. If you have noticed bad smell then it might be due to bad breath. But, remember that this would not be able to test if the problem originates from the back of the tongue. Dental flosses could also be used in testing if you have the symptoms of bad breath.