Because it goes to the nerve that carries the signal — right where I'd been pressing for twelve years.
Here's something I only understood this year. During an attack I press my thumbs into my brow bone, just above each eyebrow, hard. I assumed it was a nervous habit. Then I read the spec on this device, took it to my neurologist, and made her explain it to me slowly.
The migraine signal travels on the trigeminal nerve. Two of its branches — supraorbital and supratrochlear, I made her spell them — come up to the surface just above each eyebrow, a few millimetres under the skin. It's the one place on your head where you can reach the nerve from the outside. So my thumbs weren't a habit.
Frost Labs One puts a gel zone directly over each of those branches — that's why the pad is 130 mm and shaped the way it is — and sends gentle, shaped electrical pulses through the skin into the nerve itself. It stimulates the nerve that's carrying the migraine, at the source. On RELIEF, the pain fades into the background while the session runs. On DAILY, over weeks, the pathway gets harder to set off. That's the whole idea, and it's the same class of forehead stimulation clinics have used for years — Cefaly sits on exactly the same two branches.
Someone in my group asked why it doesn't wrap around the back of the head, where the pressure feels like it lives. Fair question; that's where mine starts too. The short answer my neurologist gave: a cap squeezes the outside of the skull. This works on the pathway itself, at the two branches above the eyebrows, so it doesn't need to reach the back of my head to reach the nerve. It won't touch the neck itself — I still put heat there — but the attack that climbs out of the neck and settles behind my eye is the one it gets to.












