Posted by Tom Leney (129.37.83.165) on August 14, 2001 at 00:35:04:
I suffered from Cluster head aches for 25 years. I finally found if I breathe oxygen at the onset of the headache I can get rid of it in about 10 minutes. Cluster headaches are caused by a dilation of the small blood vessels in the area (mine were behind and just above the left eye). Breathing oxygen constricts these blood vessel and stops the cluster headache. I used to keep a "D" size bottle nearby when I was having prblem. They came in "Clusters".
This may be old news to many but it worked extremely well for me. I no longer have these headaches. As you get older your blood vessels loose the ability to dilate enough to cause the pain.