Some doctors are offering a new option to stop migraine headaches by freezing them away.
Instead of medicating the migraine, they are using a device called Iovera.
It uses nitrous oxide to apply a targeted burst of cold to a nerve in the head, stopping it from sending pain signals.
A patient's pain response is mapped with ultrasound, then the doctor applies the Iovera needle to deaden the nerve endings.
Some patients say there's a slight burning sensation when the nerve is frozen, but within 20 seconds, the pain usually starts getting better.
And the relief can last for up to three or four months.
Freezing your migraines away
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