<qa>  What is the total duration of the study?Procedures: The study protocol begins after a patient has been diagnosed with laryngopharyngeal reflux LPR on the basis of routine history, physical exam, and diagnostic studies including 24-hour oropharyngeal pH monitoring with the Dx-pH Monitoring System Restech, San Diego, California. Prospective candidates for the study will be asked to undergo CT imaging of the tongue base. Those who are subsequently diagnosed with lingual tonsil hypertrophy LTH, as determined by mean lingual tonsil tissue LTT thickness greater than 3.0 mm on axial and sagittal views, will be eligible for enrollment, providing they meet the additional inclusion criteria listed above. The enrollment period is expected to last 12 months, and the total duration of the study is expected to be 18 months. 