[ He tries to stay within her field of vision as much as he can, chatting idly when he knows he is no longer in sight, just to make sure she knows he's still there - it's the sort of thing he would have appreciated were he in her current position, so. It doesn't take him long to return with the item in question - polished, very Tony Stark-looking, all things told. ]

Good. Let me know if you need - or, her, if you just want more. I don't judge. Not much, anyway. And between me and you, I'd want all the painkillers. I'm going to try and seal that gash now, okay? Might be a bit chilly.

[ The thing he brought is aimed, rather like a gun would be, at the far end of the cut across her torso, and he activates it, allowing some goopy stuff to thinly coat the cut itself, all the way across the wound. Thus done, he looks at it somewhat quizzically, and then after twenty seconds have passed, he pokes it likely. ] Looks like it held. Hey, good news - no actual stitches.