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Hi Sue, The ringing in the ears is called Tinnitus. It can be a side effect of medications (check what you are taking) or for me, it can also be a sign that a migraine is on the way. It could also mean a number of many other things, depending on other symptoms you may have.
19 January 2011âScientists say they can cure tinnitusâpersistent ringing in the earsâby pairing certain tones with stimulation of a nerve in the neck. Tinnitus is caused by noise damage to the sensory cells in the inner ear, or cochlea. This damage results in changes to the organization of the brainâs auditory cortex, a region that contains a frequency map of sounds. Damage to the inner ear causes a portion of this map to take over other parts of the cortex, causing the ringing.