Glossopharyngeal neuralgia is a rare condition that is sometimes confused with trigeminal neuralgia. The nature of the pain is identical and affects one side of the face.
It is usually felt at the back of the tongue and the back of the throat. It might also start at, or move to, the ear. These areas become oversensitive (or hypersensitive). The pain can be triggered by touching the ear or swallowing.
Doctors use the same methods to diagnose glossopharyngeal neuralgia as they use for trigeminal neuralgia. The drugs used to treat it are also the same.