Apologies for the TMI nature of this post...
Yes. I had it from puberty to the menopause.
Steroid ointments were a lot less effective in those days, and I frequently couldn't sit still for the itching, and scratched myself to shreds. It ruined my confidence sexually, as you can imagine.
In the end at the age of about 43 I went to my lovely GP who said I didn't have to live like this, and referred me to dermatologist for biopsy and treatment. I was put on Dermovate twice a day for about three weeks (I think), and then told to use something weaker (Eumovate?) as required after that. Didn't work, and I used more Dermovate.
Once the symptoms were under control, I noticed that there was a strong link to my menstrual cycle, and it flared up at ovulation, and during my period - especially if I didn't use tampons, ie whenever there was more discharge.
The good news for me is that relief has come with the cessation of mentruation. Oh and despite all the advice about not using steroids on the genitals, I did so on and off for forty years, and have had no adverse effects.