Displaced nasal dilator caused severe pain: Case report and literature review.

Internal nasal dilators are widely used but have not been reported to cause severe symptoms. We describe a case in which a male adult had accidentally, during sleep, inhaled a nasal dilator into his right nasal cavity, and we review the relevant literature. A PubMed search was performed of nasal dilators, especially of the internal types, including "Nasaline Snooze'" (ENTPro, Stockholm, Sweden). A foreign body in adults may be an inhaled nasal dilator. It may be overlooked on computed tomography scans, and thorough inspection of the nose is diagnostic.