What a lovely subject title
I've had itchy ladybits for several weeks if not months (OK, yes, probably months). It's not constant, it's up and down. There could be a period of several days or so I don't notice anything and then a flair up for a few days/a week or so.
I'd put it down to sensitive skin, exercising and sweating alot recently which might make that area too hot and sweaty and uncomfortable, hormones (well, they do so many odd things....) or perhaps low level thrush (have no discharge and the itchyness/discomfort isn't internal, it's mainly in the pubic hair around the front/sides. I have had thrush alot and whilst reminiscent, it's not jumping out at me as thrush).
This week has been an annoying bad week for it. I mentioned it to DH and he said he's had the same thing but on his hair on/around his balls. He's had thrush before too and said it isn't like what he's had with that before.
I've been googling but can't really find any answers which fit other than dermatitis, which might be the case for me but doesn't fit the bill for DH who doesn't have sensitive skin.
I've tried sudocrem to help it but that didn't seem to do anything. When I use loo roll it often feels irritated. I've tried washing in only aveeno which to an extent helps and I'm very careful with what soaps I use and using non bio powder, but nothing gets rid of it. And the fact that DH has it too makes me think we might have given each other something and reinfect each other.... 
Any ideas or advice?