is another theory. Blood vessels can dilate, or widen, during migraine attacks, which causes the body to release neurochemicals that intensify the pain. When you apply ice to your head, “the blood vessels constrict, or become narrow—that likely prevents that pain signal and the release of further neurochemicals,”says Dr. Najib. Cold can also block the brain’s pain sensations, says Dr.
, school, or any other situation where finding a private spot isn’t possible, putting a cold pack on your head may still help. Don’t apply the ice for more than one 15- to 20-minute period per hour, advises Dr. Najib—any longer, and you could run the risk of frostbite. All told: Cold therapy is cheap and might provide fast relief—even if only for a bit. There really isn’t anything to lose, says Dr. Najib. If it doesn’t work, you haven’t done anything to set yourself back. And if it does? That’s great: You’ve got another tool you can lean on the next time a migraine attack strikes.
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