Medically reviewed by Jurairat J. Molina, MD Chronic rhinosinusitis is inflammation of the sinuses and nasal passages that lasts at least 12 weeks. It causes ongoing symptoms, such as stuffy nose and ...

Nasal irrigation is the cleansing of the nasal cavity with sterile salt water to flush out excess ... inflamed tissues can cause the mucosa (lining of the nasal passages and sinuses) to shrink down, ...