I suffered from horrible headaches for 2+ years. Finally tried getting piercings in both ears, and have had terrific results. I don't understand why it works, and have read medical explanations on why is doesn't work, but my experience tells a completely different story. I finally figured that for a one time payment of about $80, it sure cost a lot less than what medical was costing me.
I've had them now for over a year and it is a night and day difference for me.