British Columbia, Canada
While we are on the subject of cluster headaches I used to get them all the time, and sometimes still do, and had every hospital test in the book to "kill them!" Believe it or not, I began having sinus problems about the same time. I heard about and then bought myself a Neti pot, and man a whole new world has opened up to me. Virtually headache and sinus infection free! Here is what I am referring to. Works like a hot dang! Neti Pot With all the "stuff" in the air these days, sure makes sense that the sinus cavity can cause headaches maybe? I have very few now Marge, and if I get them I use this and virtually right away they disappear. Worth a shot?