1. New Treatment Explored for Cluster Headaches
Migraine nasal spray showed promising results in small study

2. Cluster Headache Treatment Poses Cardiac Dangers
Off-label use of verapamil linked to heart rhythm abnormalities, study finds

3. Headache Symptoms - US News and World Report
Headaches that occur suddenly (acute-onset) are usually due to an illness, infection, cold, or fever.

4. Treating Headache - US News and World Report
Treatment will depend on several factors including type, frequency, and cause of the headaches.

5. Managing Headache - US News and World Report
There are many strategies for managing headaches without medication.

6. Cluster headache  (Trust Mark: Doctor-Reviewed)
A cluster headache is one-sided head pain that may involve tearing of the eyes and a stuffy nose. The headaches occur repeatedly every day at the same time for several weeks and then go away. See also: Headache; Migraine headache; Tension headache. • Reviewer: Daniel B. Hoch, PhD, MD, Assistant Professor of Neurology, Harvard Medical School, Department of Neurology, Massachusetts General Hospital. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

7. Cluster Headache  (Trust Mark: Doctor-Reviewed)
Cluster headaches are characterized by an intense one-sided pain centered by the eye or temple. The pain lasts for one to two hours on average and may recur several times in a day.• Author: Julia Barrett