Vaginal itch, no yeast Help!

I have been having intermittent vaginal itching and went to the gynocologist yesterday. She said it looks only a little swollen, no leisions etc and there is some discharge although it looks normal. She tested with a wet mount and later they called me and said there was no yeast and that I should use a 1% cortizone cream.
The nurse however was confused, she first said i have a yeast infecion, then spoke to the doctor called back and said no, there was some WBC's and bactteria, just use the cortizone cream.
What does this mean? I am confused, please help!