How to Get Rid of Cluster Headaches Cluster headaches are
extremely painful occurrences that are focused right around one
of eyes. This type of headache usually causes the affected eye
to become red and watery, and causes nasal congestion in that
side of the face. Cluster headaches typically occur within a few
hours of sleep onset, reaching their peak within 15 minutes of
appearing and lasting less than two hours. Unfortunately,
cluster headaches are a chronic condition. Sufferers may have
one headache or more each day for multiple days, weeks, or
months before a remission period that can last from weeks to
years. While cluster headaches are a cause of recurring
discomfort, they do not cause any permanent harm. Cluster
headaches are a relatively rare condition, and their exact cause
is unknown. The leading theory is that the headaches are caused
when a brain chemical provokes blood vessels to enlarge, putting
pressure on facial nerves. Men are more susceptible to cluster
headaches than women. Heavy smokers ar