I had an issue with my care on one of my hospital stays and my wife contacted the "patient advocate" at the hospital. I'm not sure what was said to whom, but there were no more issues.
In your nurses defense, I'm not sure what she could have done for you at 3 am. In order to give you anything for the itching (prescription or not) your doctor would have to approve it.
FWIW, I also get the "itchies" from pain meds (opiate type). However, it seems that the stronger the medication the less I itch. But it also could be that the stronger meds knock me completely out so that I do not notice the itching.
