how much oil of oregano?

How much oil of oregano needs to be taken for 4-6 weeks?

I've taken it many times, but not consistantly for this length of time. I've used it 2-3x/day for a couple days. I've also tried it every hour (for 8 hours), at 5 drops/hour. But after a couple days of it, I started getting constant anxiety and panic.

I'd like to try it as 1 drop/hour for 8 hours, and do for 4 weeks...but is this dose enough?

Thanks...