I have been suffering from cluster headaches for about 12 years and they have almost always attacked around Oct. or Nov. and usually last for a couple of weeks to a couple of months. I have been to so many doctors over the years and lost so many jobs that I had began to lose hope of ever managing the condition. Due to loss in health insurance, i have been forced to try alternative methods and when I boiled tiger balm (similiar to vapor rub), breath in and out deeply on the affected side in order to open up the nasal passage and coupled that with claritin and tylenol allergy it REALLY HELPED. I think that my headaches have been triggered by some sort of allergy, and strangely enough they only really affect me on one side of my face and usually attack when i am at home sleeping, or when I am relatively inactive. Anyway, I hope that this can help someone, it is a really pleasant Thanksgiving present.