I read an interesting article awhile ago....regarding this bar of soap made from the ashes,fat,,cedar oil and hyssop oil...with a little of
that red ocean worm[cocci?][pinesol?] those who had contact with a dead body had to wash with it and be isolated.outside the camp
for a while. antiseptic/antifungal,antibacterial soap...dead bodies are particularly dangerous to the living.
I remember the old lye soap..people use fat,ashes etc.