I suffered terribly with sinus infections for 10 months. Finally I was sent to the Nose Specialist and had nasal polyps. I tried the glutathione nasal spray. It was a miracle. It got rid of the polyps. Ask your doc about it. Its new on the market in Canada. My doc believes in supplements. Glutathione is the master of all antioxidants. I had tried everything biaxin, cefuroxime, nasonex, etc. My doc said "Im confident the specialist will now recommend the glutathione nasal spray to his future patients".