Herbal medicine has been in use since at least the Paleolithic period. Archaeologists working in northern Iraq, for example, found a selection of plant pollen from mallow plants, grape hyacinth, ephedra, yarrow, groundsel, and knapweed - plants they believe were used 60,000 years ago by Neanderthals for medicinal purposes...

https://www.online-ebook-download.com/blog/healing-herbs-and-spices

Herbalism has been overlooked or ignored by many formal healing institutions since the 20th century, however new research shows that some herbs are scientifically-sound remedies when used in the right way.