What is "therapeutic nihilism"

Therapeutic nihilism is a contention that curing people, or societies, of their ills by treatment is impossible.

In medicine, it was connected to the idea that many "cures" do more harm than good, and that one should instead encourage the body to heal itself. Michel de Montaigne espoused this view in his Essais in 1580. This position was later popular, among other places, in France in the 1820s and 1830s, but has mostly faded away in the modern era due to the development of provably effective medicines such as antibiotics, starting with the release of sulfonamide in 1936.