My Dr., who is female, suggests a mild non-soap to clean w/. such as Dove or a natural one like Tom's of Maine. And after you shower, just pat dry not to remove all the moisture down there. You should not be completely dry.
There are also sensitive skin formula's like Summer's Eve which I have tried with no problems. Also rinse really well- I like the removable sprayer shower heads because you can rinse the vulva area much better. And make sure the water temp. is warm to cool.
I hope this helps out.