Antibiotics were already known in Ancient Egypt.
Do you think that archaeologists discovered that 5,000 years ago, the ancient Egyptians used “moldy bread” (as described in the ancient medical texts) against infections which was effective for its antibiotic action and which, therefore, can be considered a sort of precursor of modern penicillin.
Without forgetting that the Egyptians made a great use, also for its antibacterial properties, of honey.
But the most important remedy for the Egyptians was beer. Not only as a carrier of numerous medicines but also as a medicine for intestinal disorders and against inflammation and leg ulcers. The disinfectant effect was probably due to the yeast and complex B contained in the beer which produced an antibiotic action