I asked my friendly search engine:
Migraines are debilitating headaches that tend to recur in some people, usually affecting one side of the head and frequently accompanied by nausea, light and sound sensitivity, and other disturbances. A recent study indicates that migraines may also trigger another condition, Sudden Sensorineural Hearing Loss (SSNHL).
Migraines double the risk of SSNHL
SSNHL has no known cause and is a rare condition. It defines a sudden and otherwise unexplainable loss of hearing, which may respond to steroid or other aggressive treatment, or simply go away on its own. However, in 30 to 70 percent of sufferers, hearing loss becomes permanent. Usually only one ear is affected.
While the study by the Taipei Veterans General Hospital in Taiwan indicates that migraine sufferers have nearly twice the chance of developing SSNHL as non-migraine sufferers, this study only demonstrates that migraine is a risk factor and not necessarily a cause of this form of
hearing loss. Other potential culprits for SSNHL have been identified by other studies, including viral infections, tumors, and traumatic brain injury.
Migraines linked to other forms of hearing loss
Previously, researchers have linked migraines to increased risk of other forms of hearing loss, as well as tinnitus. Tests indicated that subjects who suffered from migraines had reduced cochlear function and responsiveness. Approximately 13 percent were more likely to have tinnitus.
If you or someone you love suffers from migraines and complains of hearing loss or “ringing in the ear”, encourage them to see their doctor immediately. While not all SSNHL or other forms of hearing loss can be cured, early intervention could restore partial or complete hearing in many cases.
The above is a cut and paste from :
http://hearingaids.com/migraine-headaches-hearing-loss/