I had 3 sinus surgeries and had been adsived for the forth one. for now almost a year had no headaches, have been in gluten free diet for 4 months, stopped steroid predisone, have been using hidrogen peroxide to clean and last 2 months castor oil! doctors do not the cause, they only advise surgery, had been spray nasonex prescribed by general dr, I am waiting to see ent at jackson memorial! but not sure a bout another surgery