How do you use ocean saline spray properly ?

Nasal spray: insert the tip of the nozzle into your nasal passage and squeeze the bottle twice in each nostril and then blow your nose.

Lookup suggested use: e.g. at: http://www.oceannasalcare.com/saline-nasal-products/saline-nasal-spray & https://en.wikipedia.org/wiki/Nasal_irrigation. Body is majority water with added salts, proteins, cells, etc. Nasal mucous composed of glycoproteins secreted both to entrap inhalants & in response to internal feelings of sadness. Enough ? will drip/dry & with mucous membrane edema can ? air passages to closed.