Hm? Oh, more like once every few days. If that. There's also some artificial stuff they can get to help. Well, Mika does. I don't think Krul gets it though.

[So don't worry, Nike. It isn't nearly as bad as one might think. Especially with Ashuramaru helping heal him from the bloodloss and Mika making sure he eats enough to compensate, even if Yuu's skin takes a little longer with the resulting bruising at his neck from it.]