Eighty to ninety percent of cluster headache patients have pain over a number of days to a whole year.

VOA: special.2010.03.30

Harvest the center flower-bud cluster of broccoli when it reaches the size you want and while the buds are still tightly together.

VOA: special.2010.03.09

The Cleveland Clinic in Ohio says the cluster headache can be many times more intense than a migraine.

VOA: special.2010.03.30

When the nerve is made active, it starts pain linked to cluster headaches.

VOA: special.2010.03.30

Doctors say cluster headaches often strike during changes of season.

VOA: special.2010.03.30

Cluster headache patients describe the pain as burning.

VOA: special.2010.03.30

Cluster headaches usually strike young people.

VOA: special.2011.05.03

Cluster headaches occur in cycles: sufferers can experience several headaches a day for weeks or even months on end.

VOA: standard.2009.12.17

"Our study showed for the first time a clear difference between oxygen and air in the treatment of acute cluster headache.

VOA: standard.2009.12.17

It was properly powered,randomized and placebo-controlled and really provides evidence for the use of oxygen in cluster headaches,"

VOA: standard.2009.12.17

Researchers also found that oxygen could stop the headache pain and eliminate other symptoms associated with cluster headaches, such as red,swollen and watery eyes.

VOA: standard.2009.12.17

And cluster headaches are debilitating. The typical treatment is an injection with the drug sumatriptan.

VOA: standard.2009.12.17

Dr.Peter Goadsby of the University of California and other researchers followed The doctors treated for cluster headaches in each patient using air and oxygen in separate trials.

VOA: standard.2009.12.17