It's probably better that she isn't getting much interaction right now - reduction of stress, even 'good' stress, is only going to help her heal.
I'm really glad her swelling is going down just with clean water. It's going to be really important to keep that water clean now with changes as OFL said, to help her avoid infections. The risk is that she already might have one (causing the swelling) but she seems like such a tough little lady - who knows, her system might just bounce back with a little good care. I sure hope so.
It'd be a good idea to pick up some plain (unscented) epsom salt just in case. Epsom salt is used to reduce swelling - sometimes it can heal a problem on its own, but if there is infection it can provide relief until treatment can be arranged.
But here's hoping she pulls through with your TLC. She really is an adorable wee fish - love the 'lipstick'!
Has she got a name yet?