Kakashi was.. well, honestly he was astounded. He'd never really paid much mind to medical ninjutsu because more often than not the nin prescribing it to him would be stuffy and disapproving, or downright annoying.. The fact that she could do as much as she had at such a young age was definitely impressive, even if he could estimate she had a long way to go.

It had definitely hurt like she'd said, and he'd been forced to grit his teeth behind the fabric of his mask, managing to keep his eyes from screwing up and thanking the stars that she was so focused on his hand instead of his face. That was good.

He flexed his hand, ignoring the ache and strain of his abused skin, but seemed contented by the fact that his skin wasn't torn anymore. Just the burn itself to deal with, now. That was something he could fix himself, but he supposed he owed it to her to at least let her do that much.

"Sure," he said, glancing up at her first time since she'd started- and it was then he noticed her looking a little green about the gills - the skin surrounding the purple marks on her face flushed, but the rest rather pale. He recognized those signs easily... Oh, he should have known!

"Are you alright?" he asked awkwardly.