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Sometimes migraine is associated with various other sign symptoms like dizziness, ear ringing etc.
If ringing in the ear occurring before headache then it’s called ‘aura’.
It will be subsided gradually with antimigraine medications.
Middle ear disease
may give rise to headache like serous otitis
But ringing sensation in ear may also occur due to inner ear disease
Many drugs may damage inner ear.
So to diagnose your problem it needs a complete examination & investigation like pure tone audiometry
Please consult an E.N.T specialist.