Introduction to the medicine-washing pool: The medicine-washing pool is in an octagonal shape and covers an area of ​​about 15 square meters. According to legend, it was the place where Ge Hong and his wife Bao Gu washed Chinese herbal medicine. During the late Ming Dynasty and early Qing Dynasty, the Medicine Washing Pool was known as the "Dongtian Medicine Market", one of the four trading cities in southern Guangdong.
Ge Hong practiced Taoism and refined elixirs in Luofu Mountain, collected medicines to treat the world, and widely collected prescriptions. His works include the inner and outer chapters of "Baopuzi·Xianyao", "Emergency Prescriptions", etc. His discussion of smallpox disease is better than that of Arab doctors. Reisas was nearly five centuries earlier; the use of immunotherapy to treat barking disease was more than 100 years earlier than the French scientist Pasteur in the early 19th century; the record of sand lice as the vector of infectious diseases was earlier than that of the American doctor Pam in 1878 Records date back more than 1,000 years.