Recognizing halitosis itself is not difficult, because this affliction gives us symptoms in the form of an unpleasant odor released from the mouth. So, in order to determine whether you suffer from halitosis, it is enough to perform the so-called “smell test”. This can be done, for example, by inhaling the smell of the toothbrush we use to brush our teeth, or by touching the back of our tongue with our fingers and then checking their smell.
In addition to poor oral hygiene and dietary factors, certain medical conditions can cause chronic bad breath. Dry mouth, or xerostomia, reduces saliva production, which leads to an increase in bacteria in the mouth. Sinus infections and respiratory conditions can also contribute to bad breath due to the presence of mucus and bacteria in the nasal passages.

Millions of Americans take multiple prescription medications every day, and the combinations of medications can cause severe dry mouth. A dry mouth does not smell good. In a dry mouth, bacteria can proliferate more readily, leading to heavier plaque buildup and a higher risk for dental diseases.
Eating more frequently, small meals can help to manage weight and the effects of acid reflux. Having a large meal can upset the stomach and allow more undigested food and stomach acid to make its way into the esophagus. Additionally, maintaining a healthy weight puts less pressure on the LES.