Why, then, do these streams of water sometimes shoot from a tugboat when there's no fire nearby, such as when tugging a larger ship? The answer has more to do with tradition. Tugboats don't spray ...

What Is a Saline Nasal Spray? Saline nasal spray is a product containing a mixture of salt and water that you spray into your nose. (Saline means “containing salt.") You can use saline nasal ...