Handhold from me,
I can only imagine what it is like, the worry, all the practical stuff and the emotional stuff gets shoved down.
Let it out on here, others will also hold your hand too as I am doing virtually when she reaches the hospital closer to her home,
How about checking to see if they have a hairdresser salon in the hospital. My local hospital does. They have a small salon tucked in the middle of the hospital where you wouldn't expect it and has the overhead dryers and magazines etc.
How is she eating at the moment, is she eating at all? Could encourage with finger sandwiches or cut out in shapes, french pastries (as long as not diabetic related), pots of custard, yoghurt, jelly. This will help build up and keep energy levels right.
It will be hard to see her frail, think of her as a shell, the outside is slightly weather-beaten (sorry not a good analogy) but the inside is just the same as it was.
Re long visits as you know she wont be fit, how about chatting for a couple of minutes when you come in, eg 5 mins and then spend the rest of the visiting hour just holding her hand, telling her how you love her and take the time to breathe together or listening to some music on earphones, bring a splitter so you can both listen
When you are there could you consider together changing her make up routine a bit so if she agreed, so she gets the same effect but without the effort. S&B is great for this. so if she uses a foundation now, could change to facial tinted moisturizer. Lipstick - long day wear etc as it would mean she could get a boost from this.
I know the being too frail to walk to the toilet, at this moment to my left just over a metre away is a commode so I totally get how it is.
(((hugs to you both)))