You’re welcome! Don’t overdo the ibuprofen, especially if you have stomach problems, and try to follow the directions on the box, but it can help because it reduces inflammation (which is a major aspect to a sinus infection.)
The way I think about it, consistent use can keep the swelling down long enough to let your body’s natural defenses come in and knock the infection away while it’s reduced in size. It also helps you feel better.
You should ask a doctor or nurse how much ibuprofen is too much, if taking no more than the recommended dose (as explained on the box or bottle) doesn’t work well enough. In my experience (with other health conditions), sometimes they’ll tell you that you can take significantly more than that.