Cluster headache is an uncommon ailment affecting only about 0.1 - 0.3% of the population. It is often confused with migraine disease whose sufferers total about 13%.

Recent research into cluster headache has provided help in preventing and easing the severe pain for many, yet CH sufferers often remain undiagnosed or misdiagnosed for years. And patients may receive little understanding from family members, friends, coworkers, medical professionals, insurance companies, and the general public.

We hope our Main Topics section will help you find the information you need about:

• the nature and diagnosis of CH,
• effective CH medications,
• professional medical help, and
• ways of dealing with problems affecting the CH patient.

Reprinted articles about cluster headache research formerly shown on the home page have been relocated to the Reprinted Articles page.