Is there anything I can do to clear up a sinus infection without antibiotics?

[Blossomhill]

It's such a pain getting an appointment at my gps and I just don't have the time.
Thing is I obviously have an infection and have had for 2 weeks. Anything naturally I can do? Thanks

i've had an awful one and had to have 2 courses of anti biocs before anything happened. was desperate though.

found salt water up nose very very helpful

also post on here by moomin may be helpful