ABRACADABRA

Since the middle ages, pentacles and other magical drawings have been currently utilised to cure and keep away all sorts of diseases, it has to been made upon a animal skin or parchment or engraved on a copper plate.

And for it to be efficient, it has to be worn constantly or even better directly on the sick place on the body.

Abracadabra is the most powerful word in medicinal magic, already utilised in ancient times. It is probably derived from the Hebrew word "abreg ad hâbra", meaning: send your thunder until death.