MayB use the 'vagifem' internally and 'ovestin' on the outer areas. Gently applied eases any dryness inside and out.
As for your GP, ask for a referral to a menopause Clinic. Perhaps ring your local Hospitals to see if there are any NHS clinics ?
Ask the Surgeries Practice Manager which bit of NICE information don't the GPs understand, that many ladies require both. It mayB that the GP is simply watching costs or more likely has no idea about how HRT is prescribed!
Let us know how you get on.