I don't want to scare or upset you, but unfortunately not all sinus surgeries go as well as the two ppl who posted above. I had my sinues drained, scraped, and had "windows" created both times. I had my first surgery at the age of 14 and then again at 15. The first surgery helped me for 3 months, the 2nd surgery lasted less than 6 weeks. Then I was right back where I started. I took tylenol with codine and was put on warm water/saline flushes followed by flushed with Tobi and DNase. I had no bursing on my face, but alot of drainage and pain. To me the pain, drainage, and bleeding was not worth it. I should have stopped when the first one didnt work. My sinuses are now in the same, if not worse shape then before the two surgeries. I might just have extremely bad sinuses (due to CF and family history). The doctors told me they couldnt help me unless I took another surgery, and even then they dont even know if they would give me one since I have had bad results in the past. I would not agree to one anyway unless it was completely necessary.
But please keep in mind that not all surgeries go the way mine did, I don't know too many that have, except my mom (w/o cf), her sinus surgery only helped her for a few months then she was back in the same/worse shape then before. But not all go as good as the above. I wanted to let you know the other possibility.
I really hope your daughter's surgery will go great and have no problems.