"I see," Antonin said slowly. "The people at the Shack gave them to you."
He thought for a moment. "What exactly is the pain that wouldn't go away?
Antonin reached down the back of his neck and pulled his real wand out of the holster there. "Would you mind if I did a few diagnostic spells to check for the cold symptoms, for potions interactions, and the like? Won't hurt a bit, might help me understand a bit about what you've been going through since the epidemic."