question: my husband got a DUI, which he has to use a home breathalyzer four five time a day. He got a chronic cough that going on for more than a year. Since the cough, sometimes bother him he took over the counter cough syrups. then, finally he was diagnosed with GERD. His results from breathalyzer was positive quite a few times. He did not drink a drop of alcohol. I heard GERD can affect the results of the breathalyzer. Is it true?