A stuffy nose is virtually guaranteed to make you snore. And the reason is simple- breathing through the mouth makes your palate and uvula vibrate and those vibrations produce the annoying sound known as snoring. These drops help to wash away germs and pollution from the nose. It also gently cleanses the nasal cavity during a cold or in allergic conditions, washes away excess particles like dust and pollen, and soothes the nasal passage.