Flushing the nasal cavity can soothe inflamed tissue and remove irritants like allergens; it may help clear mucus. Typical use involves the pouring or pumping of saline water through one nostril and letting it drain from the other.
Nasal irrigation
Nasal spray
Binasal occlusion
Tympanostomy tube
Laryngeal mask airway
Cloth face mask
Nasal cannula
Simple face mask