I think the point isn't that there aren't any good herbal remedies; but rather, there are also many that aren't efficacious and whose effects cannot be replicated in empirical studies.
Tea Tree is a fine substance. I use it a lot. Green tea is proven to be high in anti-oxidants and the effects of anti-oxidants can and have been proved in medical studies (they form the basis of the only currently effective treatment of age related macular degeneration - lutin).
Different doctors have different attitudes to this stuff. My GP is quite happy to suggest to me natural remedies that might help alongside prescription medications. But she's also good for telling me which ones are proven and tested and which ones are just taking my money.
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