After surgery, the person may need to use a corticosteroid nasal spray to help prevent recurrence, although some polyps may grow back in a few years. Saline (saltwater) rinses help post-surgical ...

It's not harmful if swallowed, but it just simply doesn't work ... Beyond those products, most of the other options are over-the-counter nasal sprays or solutions. Saline drops and rinses are a quick ...