Nurse refuses to change bandage

I,m currently at an assisted living facility, whiich is staffed around the clock by nurses. I had a procedure done at the dermatologist which required freezing a small portion of my skin. The freezing caused a fluid filled blister to arise, which is what he said would happen. He directed that I have a bandage applied later, which I did. About 4AM today fluid was oozing past the bandage.so,I called the nurse in to have it changed. She adamantly refused to do so, saying she needed the doctor's written order. Is that absurd or what? A nurse from this same facility put the bandage on in the first place, so why cwas a different nurse at the same facility not able to do so? I've never heard of such a thing. Have you? Rant over.