What do i do to get rid of a sinus infection without antibiotics?

Healty life style: May be very helpful. No exposure to air impurities healthy diet exercise will have appositive impact but not always enough to clear infection.

Tincture of time?: Most acute sinus infections are viral and can get better on their own in 10-14 days (90% of them). If they are not improving by 7-10 days, then you may need an antibiotic for a bacterial infection. Using afrin/oxymetazoline (no more than 3 days in a row) can open the sinuses for better drainage. Salt water irrigations are amazing as they get the gross mucous out and refresh the nasal lining.

Possibly...: Most sinus infections are viral and are self limiting. A nasal decongestant, saline irrigation and Ibuprofen may get you through the course. There are many immune system boosters that wont hurt and may shorten the course, such as grapefruit seed extract. Even a bacterial infection can clear without antibiotics however antibiotics may shorten the course and prevent complications.