Theriac – the origin of our word treacle – is a complex medicine, some of the recipes for which sound like the witches’ incantation in Macbeth: Double, double toil and trouble; Fire burn and caldron bubble. Fillet of a fenny snake, In the caldron boil and bake….. One version requiredContinue reading “Theriac – a Very Sovereign Remedy for the Plague – Galen c.166-170 A.D.”