It's my understanding that GSM, previously known as VA, once diagnosed, is for life and is unlikely to improve and become manageable without oestrogen products for topical use. There are pessaries and creams which you can experiment with to find the right fit for you, under close guidance and monitoring of your gp. Should a gp prove insufficiently knowledgeable, you can ask for a referral to an NHS specialist menopause clinic, but it is oestrogen you need if you are referring to dryness "down below". Good luck!