Somebody has come up with a portable shocking devise that is supposed to cure them they've been studied for five years now and may soon hit the market.
I've been reading about this for some time now; when I asked my neurologist about it, he had never heard of it. While I should have been pissed that he had no clue, it's typical of the experiences I've had over the years trying to get to the bottom of these auras. Most doctors don't know much about migraine at all, much less the aura. I went to a headache clinic, and spoke to a neurologist who specializes in migraine, yet I knew more about the mechanism underlying migraine than he did - knowledge I got from off-the-shelf science books. Very frustrating. No pain = "we don't know... live with it."
Scientific American ran an article on migraine a few issues ago; they divided migraine sufferers into several groups, ALL of whom experience pain, which is clearly not true. When a reader wrote in to tell them about their error, they brushed off his letter, essentially saying that aura without pain is not really a migraine, which is ALSO not true. And this was written by cutting-edge researchers.
The causes of the aura (not what triggers the attacks - I mean the actual physical events that cause the hallucinations) are exactly the same as the events that precede the migraine pain. For some folks, this wave in the brain never hits the visual cortex, thus no aura, just pain. In a fortunate percentage of the population (myself included), the pain part never happens (just a dull headache, not debilitating pain); it's just another "flavor" of migraine.
I'll be first in line for this magnetic-field-thingy as soon as it hits the market.