Rezo frowns a little during the process. Usually, the detoxify spell is a simple one, so why is it so much more effort than usual? And... messy? It's been quite a while since he actually used it, and even with the suppression bands gone his magic's grown weaker after coming to Esthere, so perhaps that's the reason. And yet...

Afterwards, Rezo's expression shifts to one of minute surprise at the thanks.

"I'll do my best," he says. Of course, he won't be able to tell if they're purple or not, nor if they're ball shaped unless he's definitely too close. But at least he has a cloth over his lower face and the ability to detoxify myself.

Rezo supposes that it's curiosity that fuels his next question.

"...Are you sure you're alright?"