Headaches are not the only symptom of a migraine. Along with the intense pain, migraines can induce mood swings, digestive upset, and sensitivity to lights, sounds, and smells.
The flap of cartilage that is punctured for a Daith piercing is awkwardly placed. The procedure uses a curved needle and is typically done by hand rather than using an air gun.
Most of the scientific evidence has indicated that this method does not appreciably decrease pain.
The idea that Daith piercings can lessen migraines is based on the theory that piercing the vagus nerve will result in a long-lasting decrease in migraine symptoms.