My daughter is 14 and had sinus surgery four weeks ago after dealing with an infection for a long time. The surgeon said she cleared out her sinuses--scraping, baloon, etc. She has had a tremendous headache for the past month. The CT scan shows the infection is back (she cultured MRSA and Staph Aureus) but the openings are not blocked. She's been on oxycodone and now oral morphine, prednisone, a series of antibiotics--Bactrim, Cipro, now Zyvox--and we cannot get any relieft at all. Does anyone have any idea what could cause this pain and how to treat it? Thank you!