My friend just started having sex with her boyfriend about a week ago. She comes to me about any sex questions because I'm the only friend she can really come to about those things. Well, recently she's been complaining about a dry vagina. I told her keep hydrated and maybe back off from the sex for a bit. She's now getting scared because she's still dry and is wanting to see a doctor but she can't tell her parents why (strict, not understanding parents). I told her do what she has to but what could it be from?