Hermione frowned at his barely coherent explanation and took the parchment to read it and the ingredients list. "Hmm," she read over the parchment a few times, sitting slowly next to Harry. Putting her arm around his shoulders, she gave him a little squeeze. "This is the strangest thing I've ever heard. I've never read about anything like it." Hermione was so intrigued (and, okay, a little excited) with the strange puzzle Harry had brought to her doorstep she couldn't bring forth the ire she had thought she should feel towards him over the Ginny thing. Then it hit her, maybe this was part of that.
However, she thought better than to voice that idea immediately. "So this says you should go back over what you've done over the past few months to see when it started affecting you, or when it could have been administered. Have you done anything... weird recently?" While she waited for his answer, Hermione was already running a list of antidotes for each ingredient listed.