4 thieves oil (from PaulandNel)

[Phil]

I have often wondered if the essential oil mix was an insect repellent remembering that the plague was usually transmitted by fleas from rats.But once a victim had died the fleas would want a new source of blood.
However having made that suggestion I note that all the five oils have anti septic characters,four are anti bacterial,two are anti-viral and one is anti-fungal in nature.
And on further research I find that essential oils listed as flea repellent are the following,lemongrass;citronella;pennyroyal;
rue; tansy;and lavender, none of which appear in the original recipe.