I have a permanent remedy for sinus: Very cheap!! Go to Mexican Store Get Habanero Chilli and Indian Black Pepper, cook with Khasi ko Masu , eat every day Make nepali Milk tee and mix Honey from Mexico or Guatemala and drink every morning , African or Cuban Pineapple as Dessert Continue for I month your problem will be gone. But You should still continue to take this Mexican honey with tee all the time. I had Sinus for long time. I was advised by a red indian friend´s grandmother. It worked. My problem is gone. I am still drinking tee with Mexican Honey. Try this let me know in one month.