Herbalists use several remedies for migraine, but the best evidence is for feverfew.
The leaves of this plant apparently reduce the inflammation and blood-vessel dilation that cause migraines. The herb's reputation as a migraine soother has stemmed from several studies. These patients agreed to stop taking the leaves. They were then randomly assigned to receive either capsules of freeze-dried feverfew powder or placebo capsules. Those receiving the placebo had both worse and more frequent headaches, nausea, vomiting, and other migraine symptoms.