Freezing your migraines away

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.