Chronic Throat Phlegm

Allergies and viral sinus infections are possible but less likely causes of chronic throat phlegm compared to reflux conditions. Acid and bile refluxing into the throat expose vocal cord and throat tissues to caustic fluids that begin dissolving mucosal tissue, driving mucus production. Chronic throat mucus is the body's protective response to acid and bile dissolving mucosal tissue, not a disease in itself. Suppressing chronic throat mucus with antihistamines or antacids does not resolve the problem because the underlying reflux continues untreated.