Ladies, can you help with a "personal female" question?

Ok, so I have a friend on here that thinks it would be too embarrassing to ask this so I told her I would ask for her. She is currently dealing with a Vaginal Yeast Infection. She got the cream for it and everything, but what she wants to know is if she was told that your suppose to keep the “area” as dry as possible ( dry well after showering, wear loose pants, breathable underwear) how does a cream that keeps the “area” moist help?

I figured regardless of the moisture, the medicine in the cream will take care of it. But I don’t know, I’m not a Dr. haha.