Vaginal Itching

Lately I have been experiencing some constant but mild vaginal itchiness. i went to the walk in clinic to get a pelvic exam, where they ran an std test on me that came back negative, as well as a test for yeast infections or utis. i cannot think of what may be causing this, as it is not only in the vaginal area, but around the clitoris as well, pretty much occasionally on my entire genitals. this has come out of no where. i guess i’m looking for what could be causing it OR some kind of relief solution.