Similarly the Egyptians used honey in wound dressings. "We now know that honey actually contains substantial amounts of hydrogen peroxide which can kill bacteria".

Also "moldy bread was used in China, Greece, Serbia, Egypt and probably other ancient civilizations as treatment for some disease conditions, particularly infected wounds. The observed curative powers may have been due to some raw forms of antibiotics produced by the mold growing on the bread".

http://amrls.cvm.msu.edu/pharmacology/historical-perspective...