Amulets.

Ella listened to her classmates and scribbled things down, wondering what new information she could offer up that hadn't already been said. The trouble was, it was taking her longer and longer lately to recall information and so by the time she felt like she had something insightful to say, it had usually already been brought up by someone else in the room. There was something, though.

"I believe the Egyptians also used amulets in the medicinal field. They'd be used with certain spells and special dressings. Also, I guess the actual parchment the spells were written on could be used as a kind of amulet too." Folded up and kept on the person and...yeah.