Sinuses are air-filled cavities in the skull. They drain into the nose through small openings. Blockages in the openings from swelling due to colds, flu, or allergies may lead to acute sinus infection. With this infection you may notice increased post-nasal drip. If you suspect that you have a sinus infection, you should see your physician for antibiotic treatment.
Chronic sinusitis occurs when sinus blockages persist and the lining of the sinuses swell further.
Patients with polyps tend to have irritating, persistent post-nasal drip. Evaluation by an otolaryngologist may include an exam of the interior of the nose with a fiberoptic scope and CAT scan x-rays. If medication does not relieve the problem, surgery may be recommended. Swallowing Problems Swallowing problems may result in accumulation of solids or liquids in the throat that may complicate or feel like post-nasal drip. Thus, even normal secretions may not pass smoothly into the stomach.