Hi Red Fox
Yikes! Your private doctor sounds terrible to me! Premarin is oestrogen albeit a mix of horse oestrogens but also including estradiol which is our main oestrogen! How can any doctor worth their salt say that oestrogen will shrink fibroids?! As Taz says!! As for the bespoke cream - sorry to say I'm afraid that is the treatment prescribed by some unregulated private doctors and I would not touch it with a barge pole. It will cost you a lot of money and may not do very much and certainly may not do what you want it to do.....
I realise you have been given poor advice by the NHS but I urge you to ditch that private doc. Firstly if you need a sceond opinion I would see if you can be referred to a menopause clinic through NHS if you can and if they are still operating, although there may be a waiting list.
Secondly if you can't get an appointment soon and you feel that going privately is your only option then please look at the list of specialists recommended by the British Menopause Society here:
https://thebms.org.uk/find-a-menopause-specialist/ who will be able to advise you better. These doctors will know their stuff and should give you good advice. Some are private some are NHS.
Re the fibroids - have you been told what size they are and how many of them? Also if you are post-menopausal - which you may be at your age (do you know where you are in menopause?)- then you could go onto Femoston conti which would help prevent the fibroids from growing - as Gnatty says.
I agree with the others - I wouldn't want my bits taken out if there aren't actually any problems...
All the best and do let us know what you decide to do.
Hurdity x