100 % Oxygen therapy used in

(A) Cluster headache # CLUSTER HEADACHES are rare, extremely painful, & debilitating headaches that occur in groups or clusters.> These headaches affect one side of the head (unilateral) & may involve tearing of the eyes & a stuffy nose.> Unlike migraines, more men experience this type of headache than women.> They can affect people of any age, but are most common between adolescence & middle age.> No discernable pattern can be found among families in the development of cluster headaches.> While no specific cause has been found for the disorder, it appears to be related to a sudden release of histamine or serotonin by the body tissue.> Onset is sudden & most commonly happens during the dreaming (REM) phase of sleep.> Headaches may occur daily for months, alternating with periods without the headaches (episodic), or they can recur for a year or more without stopping (chronic).> A person may experience alternating chronic & episodic phases.> Some people who experience cluster headaches are heavy smokers.> Alcohol, glare, stress, or certain foods may trigger an attack.> The goal of treatment is to relieve the symptoms.> Smoking, alcohol use, specific foods, and other factors that seem to trigger cluster headaches should be avoided.> A headache diary may be helpful in identifying triggers.> When a headache occurs, record the date and time it starts.> In addition, list all activities, substances used, and food/drink consumed within the previous 24 hours, as well as any other factors that seem significant.> HBOT seems to be useful in the treatment of cluster headaches, particularly for frequent headaches that occur at night.> Side effects of mild ear and sinus pressure have been reported