Oh why does this keep coming up? It came up again in the onychomycosis debridement thread. Tea tree oil does not work. Tea tree oil has been shown not to work. Tea tree oil is dangerous. Davinci and Belinda are being too polite. They need to tell those that use it for onychomycosis that they are not competent. Podiatrists that use it are being dangerous and doing their patients a disservice. Ignorance of the law (the evidence) would not be a suitable defense. It’s worse than snake oil. Marigold therapy is just as bad. Competent health professionals do not use it either. See the compendium on TTO.