Astoria nodded in greeting. However, at his next notion, she was a bit taken aback. "You?" She knew he had been doing something...medicinal. "A potion spill. From a scintillation solution." She looked a bit apprehensively at him before offering her arm. If there was one thing she was most mistrustful of, it was of people's healing abilities. But she couldn't very well go around with a large burn on her arm. "Working as Pomfrey's lackey now?"