As was not uncommon, Greg wasn't exactly sure of anything, so he shrugged his broad shoulders. "You can ask him. I haven't seen him cure anyone." Nor did it seem at all likely that if he were to start, he'd begin with anyone from Slytherin house. "What about the journals?" he suggested. He'd seen George scribbing in his earlier, and when he'd checked he'd found there was a note about the new product. "You could ask there, might find someone faster."
He shrugged again at her question. "I had one of the chocolates. Don't know what it did yet." Just in case, he took her hand and gave it a quick shake. There was no obvious reaction, and he let his hands fall back to his sides. "Sorry." He really did wish he could help, but with Draco still out of the country, didn't know what else to suggest. "Maybe someone could make you a potion, but it probably wouldn't be any quicker than staying here."