Nasopharyngitis

This trial compares three FDA-cleared in-office procedures that treat chronic non-allergic rhinitis by targeting the posterior nasal nerve. Radiofrequency ablation (using RhinAer or Neuromark) uses heat, while cryoablation (ClariFix) uses extreme cold to reduce nerve signals that…

This study tests a propolis throat spray to see if it can reduce how often and how long healthy adults get sick. One hundred people aged 18 to 65 will use the spray or a placebo daily for 16 weeks and report any illnesses. The goal is to find a simple way to prevent common colds …

This study tests a procedure called RhinAer that uses heat to treat the nerves in the nose for people with chronic rhinitis (long-term stuffy or runny nose). Researchers want to see if it reduces inflammation and improves symptoms like cough and post-nasal drip. About 25 adults a…

This pilot study is testing whether two natural dietary supplements—taxifolin (found in apples and onions) and ergothioneine (found in mushrooms)—can improve immune function in healthy adults aged 50 to 65. Researchers will measure how well immune cells engulf and destroy threats…