He recognized that clean wounds heal themselves, opposing the painful medical practice of pouring hot oil or applying dung to wounds.
He identified that inhaled dust, rather than evil mountain spirits, caused lung diseases in miners. Paracelsus
(Theophrastus von Hohenheim) was a Swiss physician, alchemist, and philosopher of the German Renaissance. He revolutionized medicine by bridging the gap between scientific observation and spiritual mysticism. He recognized that clean wounds heal themselves, opposing