Is op likely to be upset, yes, she’s been through stuff with her mother and she took her to the hairdressers (it’s not your fault but I know you’re going to be feeling things about that, it is not your fault.)
is the best person to be on the ward with dd, the person who is upset and possibly crying? No.
ive had a skin graft and reconstruction on face, I’ve sat beside older teens in hospitals the same boat. Sometimes the best thing a parent can do is acknowledge they shouldn’t be there at that moment. It’s such a hard to describe situation, it’s on your face, everyone can see it, you know it, for a large amount of people they really need someone in the initial days who is just stoic can listen to the info and that’s about it, the needing someone to hug and cry with comes later.
berating op to go in, upsetting her more, and trying to shame her into going in, in not the right state of mind, will be shit for dd and her. op says dd has someone with her, taking a day to pull yourself into a state that can go in and not be upset, is not a bad thing.