How do I manage extreme itchiness on my clitoral hood and perianal area?

26F, 5ft 11in (180cm), 180lbs. I don't smoke, drink alcohol, or use recreational drugs. I engage in endurance sports and am relatively fit. I live in the US.

Please help, I'm at my wit's end. The itchiness is starting to affect my cognitive function and my mental health.

I'm always extremely itchy on my clitoral hood and around my anus. No itchiness inside my vagina, just the two end points "down there". The itchiness exacerbates when I sweat and when I'm swimming in a pool. This started 2 years ago in the summer of 2024. Prior to this, my scalp has been suffering from itching, flaking, and bleeding since 2019 and in early 2025 I was diagnosed with scalp psoriasis by a dermatologist and was prescribed clobetasol. During the derm visit, I mentioned that my clitoral hood and perianal area also itch and asked whether these two could be related. My derm said I could also have inverse psoriasis down there and told me to use cortizone 10. I would apply cortizone twice every day for a few days, and if the itchiness subsides, I would stop until the itchiness comes back and I would reapply.

Then I started to have horrible recurring yeast infections in my vagina. When I get those yeast infections, my butt crack will be flaky, and the itching down there becomes unbearably intense. Still, my vagina is not itchy, only my clitoral hood and my perianal area are itchy during yeast infections. My gynocologist said since cortizone is a steroid, and yeast loves steroid, I could be getting recurring yeast infections from applying cortizone 10.

So I went back to my dermatologist and raised my concern. My derm basically dismissed my concern and told me that applying hydrocortisone is completely appropriate for treating inverse psoriasis, and prescribed me with Hydrocortisone 2.5% again. I used it for a few days and am now suffering from intense yeast infection again.

I don't know what to do. Are there any medications that can make the itchiness go away, while not giving me yeast infections? It's so itchy down there ALL THE TIME, combined with my itchy scalp, I cannot concentrate on doing anything. It's so inconvenient when I'm itchy down there in public too!

I'd appreciate any insights. Thank you!!!