My OB prescribed me the ovestrin cream before I'd even asked ... he just said 'here is a script in case you need it, for vaginal dryness'.
I haven't actually used it yet though, because after I bought it home from the chemists, I read the product information sheet, and it said that one of the side effects was a possible reduction in milk supply. Since I'm struggling with low supply issues, that sort of freaked me out.