
What size of a hospital is it, with all the hoops hospitals have to jump through these days I am surprised this one hasn't fallen foul of the men in suits if this is normal practice.
Some of the problems may be down to the staff on the ward, her named nurse should have been on top of arranging her discharge and I can't explain how she could have been discharged in error, if things are rather slack on the ward then things are going to be missed/allowed to slide which isn't good. Drs who are less than diligent will get away with murder on a slack ward, I have seen them come to our ward after being somewhere like that and get a real shock as we expected to know where they were every minute, no sciving off to meet up with their mates in the canteen in the hopes no one found them as it was a long way from the ward, they would get one warning from the nursing staff and if things didn't improve the consultant would be informed, many consultants I had known since they were junior Drs and was on first name terms with much to the amusement of my younger colleagues.
Wards with the same speciality can be run completely differently depending on who is in charge, usually the older the person the better as too many youngsters with very little experience are being promoted these days because they have the right paper qualifications but not the hands on. So as well as a change in consultant I would ask for a change of ward too.
I can't imagine leaving a patient in pain, promising meds and then not coming back with them, there are nurses I have known who have promised to get something for a patient and not followed through but never with medication, I'm afraid I would have hounded them till I got it, my finger would constantly been on the buzzer if I couldn't physically get up and go find the nurses.
I hope you get this sorted so your daughter can be more relaxed for her next admission.