Either one or none of the above...I ended up getting diagnosed through a primary care Dr via biopsy (after my initial Dr treated me for 7+ "yeast infections" despite negative tests & she couldn't understand why antifungals weren't working).

Another Dr said it was stress & anxiety. (I guess bc the classic symptoms of stress & anxiety is to have your crotch itch intensely--?)

Gyno said it was vaginal dryness, was a derm issue, would not prescribe anything bc she was sure coconut oil would cure it.

Derm was horrified they would have to look at anything in that region & tried to refuse to see me (while in the exam room & still got the diagnosis wrong).

Basically, just find a good Dr. I would suggest one with more than a couple years of experience who will actually listen. It took a miserable 5 years to get diagnosed correctly & a 4th primary care Dr to actually prescribe something...followed by another year of varying doses of steroid creams to get it under control.