Overview

Cluster headaches, which occur in cyclical patterns or clusters, are one of the most painful types of headache. A cluster headache commonly awakens you in the middle of the night with intense pain in or around one eye on one side of your head.

Bouts of frequent attacks, known as cluster periods, can last from weeks to months, usually followed by remission periods when the headaches stop. During remission, no headaches occur for months and sometimes even years.

Fortunately, cluster headache is rare and not life-threatening. Treatments can make cluster headache attacks shorter and less severe. In addition, medications can reduce the number of cluster headaches.

Cluster headache care at Mayo Clinic

June 15, 2016
References
  1. Cluster headache. National Headache Foundation. http://www.headaches.org/2007/10/25/cluster-headaches/. Accessed Jan. 8, 2016.
  2. Headache: Hope through research. National Institute of Neurological Disorders and Stroke. http://www.ninds.nih.gov/disorders/headache/detail_headache.htm. Accessed Jan. 8, 2016.
  3. May A. Cluster headache: Epidemiology, clinical features and diagnosis. http://www.uptodate.com/home. Accessed Jan. 8, 2016.
  4. May A. Cluster headache: Acute and preventive treatment. http://www.uptodate.com/home. Accessed Jan. 8, 2016.
  5. Neurological exam. American Brain Tumor Association. http://www.abta.org/brain-tumor-information/diagnosis/neurological-exam.html. Accessed Jan. 8, 2016.
  6. Capsicum. Natural Medicines Comprehensive Database. http://www.naturaldatabase.com. Accessed Jan. 9, 2016.
  7. Swanson, JW (expert opinion). Mayo Clinic, Rochester, Minn. Jan. 13, 2016.