This reminds me of the Sir Jason Winters cancer story. Going from memory (because I can't seem to find his story anymore, and probably because it's in a book now), he had a tumor on his throat, and rather than surgery he went looking for a natural cure. Found 4 ingredients that together worked against the tumor. He was brought before Congress to tell his miraculous story. One of the ingredients (I believe it was chaparral) was later banned from ingesting in the US (which tells me that's the important one of the 4). From what I can find at his tea website, now run by his family, here are the ingredients in his words:

On three different continents, I discovered three different herbs, each with a centuries-old reputation as a powerful blood purifier. In Europe, descendants of ancient gypsies told me about the powers of Red Clover. In the deserts of North America, I learned of Sage & Chaparral from the Native American wise men. In the Far East, I finally discovered the unique oriental herb that set my formula apart from all others: Herbalene (oriental spice).

I bought his peach tea years ago and it was without the chaparral - you could only get that ingredient in the tea in Europe at the time. It seems chaparral is ok now in the US in small quantities.

His awards for his work against cancer: https://www.sirjasonwinters.com/awards/