I applied the Oregano Oil (100% pure) to the brown spot with a Q-Tip. Yes, I let it sit on the spot, as long as possible. Yes, it burned. And yes, it turned into a large raw looking red spot.
However, the issue is, today it is already day 8, and my brown spot is looking about 20 times worse than ever before. Currently it is RED (as opposed to brown), and LARGE (as opposed to small).