She reached behind her and grabbed the bottle out of her bag, pushing it towards him. He was probably going to waste it on something like sterilizing cuts, instead of drinking it. But she wasn't going to stop him. At the very least, he could trade it for actual medical supplies.
"Yeah, a friend needed me to go as a favor. He asked me yesterday. I don't think I'll be gone for long. I just need to help him with something." She shrugged to show it wasn't a big deal, because it really wasn't. Apart from the fact that Laney didn't really 'help' other people, there was nothing out of the ordinary of wanting to go to another safehouse for a bit.