Hi Superstar, sorry you are suffering and I know exactly how you feel. Unfortunately there is no 'one size fits all' answer when it comes to moisturiser. Some like Sylk, some prefer Yes products, some like oil-based, others water-based. The only thing you can do is try it and see how you get on. It gets expensive sometimes! Just give it a try and see what happens.
You have only just started Vagifem and it can take a while for things to improve. You could also ask the GP for some Ovestin to use externally.
Best wishes,
JP x