Posted by gary rhodes on January 15, 1999 at 21:12:50:
I don't know exactly where i saw this yesterday. Some cluster headache website but this is the gist of it. Instead of breathing 100% oxygen, try cold air. Cold air (at least 40 degrees F) has helped me ward off three headaches in the last two days. In upstate NY it is much colder outside, but the article said to breathe cold air for 6 to 15 minutes at the onset of an attack. It worked for me. TRY IT!