Health

International organization dedicated to researching and promoting the treatment of cluster headaches with hallucinogenic substances.

Consumer health resource with FAQs relating to these headaches characterized by short-lived attacks of sudden, severe pain around one of the eyes.

Consumer health resource center providing information on the causes, symptoms, and treatment. From eMedicine Health.

Charity and expert patient group dedicated to helping cluster headache sufferers in the UK. Find support and membership details.

Excellent resource with detailed information about symptoms and treatments.

Support site devoted to those who suffer from cluster headaches

Highly technical discussion of causes and treatments for health care professionals.