"Here," Nitrous said, turning both handles of the sink so the water would be cool. "You don't want it to be cold, cold will make it even worse."
She reached into the kitchen drawer that she used to store packs of balloons. She loved balloons. She probably would have loved them even if they weren't an extremely convenient way of transporting nitrous oxide. They floated!
No, focus, she told herself sternly. Nitrous opened the packet, took a deep breath, and then began blowing up a balloon. She breathed out pure nitrous oxide, little bouncing particles of herself. She pinched the end of the balloon closed when it was full enough.
"Here! Handy dandy painkiller plus happiness," Nitrous said, offering him the balloon. That part was totally true, she was great at numbing pain!