From 900 CE an antibiotic salve.
[gizmodo.com]
I love that there is real research being done on some of these ancient concoctions. I spent a semester in Taiwan studying natural medicine at their medical university. They do a fabulous job of combining both Eastern and Western medicine. I wish we could find better balance here in the US. Unfortunately, our thinking tends to be black or white, when many of the best results come from somewhere in the fray of grey.
So effective as a bacteria killer. The virus would laugh at this and say, bring it on.
. . . hmmm, I posted this yesterday :