I was wondering if mold/fungal frequencies made a difference too (or olive leaf extract nose spray). "The" Mayo clinic came out with a report in 1999, that a high percentage of sinus infections are fungal, not bacterial like MD's give Antibiotics for.
The other thing Mega..have you (and Wen) ran the frequencies for Valley Fever? Especially living in S. Calif, that would be an important one to run.