Magnesium (non-prescription) has been utilized in the treatment of vascular headache. It is most commonly recommended as a supplement in the preventative treatment of migraine and sometimes used for cluster headache. Few credible studies are available, but some patients and physicians attest to its helpfulness....

Two main types of stroke occur. One is when a blood vessel to the brain bleeds (a cerebral hemorrhage), the other when a blood vessel is blocked (a cerebral infarction). Cerebral hemorrhage patients almost always suffer from headache, especially if blood enters the area surrounding the brain, displacing pain-sensitive blood vessels. The pain is sudden, severe and persistent.