What Causes Clitoris Area Roughness With Itching And Soreness?

I have a rough area around the top inner area of my clitoris. It itches and is a little sore to tough. I didnt show my gyno but I told her about the itching. She gave me a multifungal type cream. I was wondering if this could be caused by vaginal dryness or not wearing underwear, etcl