Your GP is behind the times! It is quite safe to use VA every night when necessary. Dr Newson is trying to get the wording altered in the leaflet in the box of VA treatments .
I use 'ovestin/estriol' cream internally as well as a smear around the vulval area. When symptoms niggle I swallow two Nurofen 3 times a day.
If symptoms niggle I put a dose up mid-afternoon as well as B4 bed, then go back to using every night. One cannot over dose on oestrogen ;-)