Find Relief from Sinus Infections Naturally

Sinus Infection -- smell of death in my nose. 30 days of antibiotics didn't help. 3 10-day courses with an immediate return of the smell of death at the completion of each course. Doctor recommended a CAT scan. Decided to try other remedies. First tried, salt (hypotonic), vinegar, and oregano oil in a nasal spray -- seemed to work for a while, but the smell of death returned. Tried peroxide and salt (tonic) didn't work. Went to the dentist for a cleaning. X-rays showed an abscess on tooth 14 -- no pain or symptoms other than the "sinus infection." Had a root canal today. Can already tell the difference.