People may only be able to breathe through one nostril due to congestion, allergies, a blockage, or natural changes in the nasal cycle. This is not uncommon and may get better on its own.

Xhance comes as a nasal spray. Xhance is used in adults to treat chronic (ongoing) sinusitis (sinus infection) with or without nasal polyps. To learn more about Xhance’s uses, see the “What is ...