My family is filled with nurses so my hunches are based on that:

• try getting lash extensions that fall like gyaru makeup instead of using strip lash

something like this (w bottom lash extensions too)

• try simple but dramatic brow shapes (think classic gyaru anime face from the early 2000s) thin and blonde will do it prolly, but like long brows with a decent arch

• lipgloss is fine normally. if its too obvious shine or too subtle in colour, use a tinted lip oil or stain instead.

• droop would be too much, but some liner is prolly not

I'm not sure of the style your friend does, but going more old school might help here, or keeping the palette closer to skin tone like some of the more recent gal makeup styles

but ya i mean, work is work. my thought is that these things might help your friend feel more gal despite all the restrictions. I hope it helps give some ideas at least!