The (not so) daily blog of life faced by a Canadian, chronic, cluster sufferer.

Concise listing of clinical features and management.

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

Frequently Asked Questions from the Michigan Head Pain And Neurological Institute.

Further research into the possible elimination of chronic, severe and life altering headache pain, cluster headaches, through the use of hallucinogenic substances, which have proven to be more effective and less destructive to the human body, than traditional treatments.

Includes forum and cat room; medical articles and FAQs.

Broad outlines on diagnostic criteria from the State University of New York.

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

Information about OUCH and its activities. Includes a quiz, medical information, comparison table and the International Headache Society diagnostic criteria.

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