Natural remedies for a sinus infection?

I have been to the doctor and they gave me a spray starts with an F can't remember the name, but it doesn't seem to be working and the sinus infection feels to be getting worse. This has been lingering for a while and I am so tired of it. Is the antibiotic necessary or is there some kind of natural remedy... show more I have been to the doctor and they gave me a spray starts with an F can't remember the name, but it doesn't seem to be working and the sinus infection feels to be getting worse. This has been lingering for a while and I am so tired of it. Is the antibiotic necessary or is there some kind of natural remedy for it. I would like to get rid of this by the end of the week.
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