@MrsPramm - That, of course, doesn't apply if you've already got something like thrush or another infection. In that case, I'd ask a doctor for advice about hygiene.
I wish that female hygiene was covered more clearly in school, to be honest. I feel like they didn't even cover the basics of what options were available for periods and piercings and things like hair removal.
Maybe it's not the kind of thing that should be covered in school, but it could save a lot of trouble later on. A lot of my friends ended up with infected belly-button piercings, for example, because they had no idea how to get a good one, or how to care for them once they had them. And I know that having my period at high school was the most stressful thing in the world. I had no idea how to deal with it or whether what I was experiencing was normal or not.