Before the Oregano Oil, i would dab some hydrogen peroxide on it. When it fizzes,you know the oxygen in it is working. parasites hate hydrogen peroxide also- but i would only use the regular hydrogen peroxide sold in drugstores on the skin. There is a certain grade you can take internally- but its not sold over the counter in drugstores.
Hydrogen peroxide has also been said to tackle cancers as well! After the hydrogen Peroxide, the Oregano Oil will give whatever it is a double Whammy!