Medically reviewed by John Carew, MD Fact checked by Jillian Dara Nasal sprays can treat congestion and other symptoms of seasonal allergies or a cold. They work by delivering a fine mist of ...

It is also important to consider the ingredients in the allergy nasal spray. Some sprays contain steroids, which can have side effects ... prolonged use may cause rebound stuffiness, so it ...

Learn more. Nasal decongestant spray can help relieve sinus infection symptoms in the short term. But you should limit your use to no more than 3 days to avoid a rebound effect, which can lead to ...