Cluster headaches (also called cluster migraines or Horton's syndrome) are similar to migraines but are much more severe. Attacks arrive in clusters lasting weeks to months, with months or years between headache cycles. Common medications are ineffective at providing relief, and the pain is so excruciating that many victims have committed suicide. Unlike other headaches, one cannot simply take a couple of aspirin and continue with everyday events.Cluster headaches affect one out of every 400 adults, yet many victims suffer alone. Their symptoms were either misdiagnosed, or they are unaware of current treatment modalities. But help is now available for the thousands of men and women who are afflicted with this debilitating ailment.This concise manual on cluster headaches is furnished to encourage and support cluster headache victims, their families, and the doctors who are trying to help them. It contains more than 200 profiles of cluster headache sufferers, along with candid excerpts by medical doctors and their patients. More importantly, it clarifies symptoms, elaborates on factors likely to provoke the condition, and provides the most up-to-date, cutting-edge therapies for treating and relieving the pain.