Thanks guys. Yes, Rocky, all is well now. Actually, I was fine in about an hour. If you can survive the initial nuclear blast, then you're home free. ;-)
The jock itch is gone...no fungus could survive that. Needless to say, my method is not recommended. I would have been happy to dilute the oregano and just take longer to get rid of the fungus, as long as I was making progress. And I couldn't have used some cheap, ineffective, imported from who-knows-where herbs...noooooo...I had to be using the good stuff.