There is growing evidence that some (not all) headaches are triggered by the nerves that provide sensation to the scalp and forehead as they course along the head. In some cases the facial or posterior neck muscles may trap the nerves, compressing them and thereby causing irritation of the nerve. When this happens there is referred pain to the head much like what happens when a person has a "brain freeze" from eating a cold food. Botox is a drug that paralyzes muscles. If the muscle that triggers the nerve is paralyzed then the nerve may not be triggered. Remember that Botox is temporary, lasting 3-6 months.
How Does Botox Treat Chronic Migraines?
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