Some ideas come to my mind:

I assume the need for solu-cortef was determined via and discussed
at a prior office visit with the doctor. That’s who you need to
be talking to, not the nurses.

If your daughter becomes ill, do they really want to risk being
responsible for withholding the meds? Make it clear, in writing is
better, that you see it that way.

Another step is to refuse to pay for that doctor visit since the
services were not fully rendered. How easily this can be done depends
on your insurance. I’ve learned the hard way, and now try to pay
doctors via credit card and then get reimbursed from the ins co.
If you have a problem with the medical serviced rendered, you can
instead simply dispute the charge on the credit card.

A large part of the growing problem in the medical industry is that
doctors for the most part get paid (by ins co) regardless of whether
they actually helped you and provided some beneficial service. This
means both the good doctors and bad ones get paid, and the bad ones
never get weeded out.