A saline nasal spray is a mixture of sterile water and 0.9% sodium chloride (salt) that you can spray up your nostrils to flush out pollen, dust, and other allergens from your nasal passages (the ...

Saline drips, which provide hydration, are a frequent sight in hospitals. And sterile water, which is used to mix with medications, dilute other fluids or clean wounds, has been in shortage since ...