I've had a dry itch down below since the start of chemo 5 years ago, I'm also now 5 years down the line from periods so well into post menopause. I use Replens, but I find that Sylk applied to the outer part of the vagina on a cotton wool pad helps with the itching. There is also another product good product called YES which is American and claims to be the closest thing to your own natural lubrication. You have to buy from their website (it's based in the UK) and you can get some trial sized samples of their different products in a pretty little gossamer bag for about £10.
An old fashioned home remedy is also to try inserting some natural yoghurt on a slim tampon. It does actually work!
A gynaecologist I was referred to a few years back specialised in all these female problems after BC (my oncologists referred me to her clinic). She said whilst they don't like giving women anything hormonal they weigh up the pros and cons and if a woman's quality of life is terrible they will prescribe. If you google for the Royal College of Gynaecologists/Obstetricians there are some podcasts. I listened to one by a female Consultant giving a public lecture in London and it went into to all this stuff. Sorry, I don't have the link as I deleted it from my computer, but if you can find it it's very informative and she goes into women who have had breast cancer as she's seen many at her hospital clinic. It lasts about an hour but you can just listen to the relevant bits.
Hope this helps - it's one of the most miserable aspects of all this. I have been there. done it and got the t-shirt as they say.
