What Causes a Persistent Sore Throat with No Other Symptoms?
1. Introduction A persistent sore throat without accompanying symptoms like a fever or a productive cough is most frequently caused by laryngopharyngeal reflux, environmental irritants, or chronic postnasal drip. When stomach acid, dry air, or environmental allergens continuously bathe the delicate pharyngeal tissues, they induce localized chemical or mechanical inflammation rather than an infectious response. … Read more