Nasal irrigation is the cleansing of the nasal cavity with sterile salt water to flush out excess ... Flushing the nose with salt water helps by maintaining moisture so the sinuses can function ...

Researchers at Ohio State University have announced they are the first in the world to test new non-invasive devices.

The air that enters the nasal cavity flows down the trachea. The trachea has a number of adaptations: cartilage rings in the walls of the trachea help to keep it open ciliated epithelium and ...