<s>[INST] I have chronic bad breath.  I take high blood pressure medicine, but I brush my teeth daily and sometimes twice a day.  I scrap my tongue every day.  I use the nettie pot three times a week.  I drink water all day.  I visit the dentist for cleaning and exams twice a year.  I use acid reflux medicines once a day.  I dont have sinus infections, but I have been diagnosed with a deviate septum, on a  mild case because I can still breath.  I dont know what else to do. [/INST] Thank you for asking! Bad breath is also called halitosis and many a reason from acid reflux to dental hygiene can be the reason. Unless there is an etiology connected here with this symptom all I can advise is a good oral hygiene most of which you are already practicing. Flossing, brushing, tongue brushing, tongue scraping, and chewing gums will help. The tongue should be brushed in a gentle but thorough manner, in a posterior to anterior direction, keeping in mind that the least accessible posterior portion smells the worst. Keep HY Chat Doctor.  </s>