Dreadful to read that this kind of attitude from GP's continues, the only way to combat this is to educate yourself by gathering all the information about treatments and dosage and pass on the knowledge learned to those professionals who should know better.
A post from Dr. Heather Currie on a thread two weeks ago:
"The dose increase for vaginal estrogen tablet as mentioned is reasonable because of the following--
Many years ago, we had a preparation Vagifem 25mcg--every night for 2 weeks then twice weekly. When it was taken off the market, we then used the lower dose Vagifem 10mcg (Vagirux is the same)--nightly for 2 weeks then twice weekly. So the maintenance dose of Vagifem 25 provided 50mcg of estradiol over a week, for which there was no concern about significant circulating absorption affecting the womb lining. Therefore, if needed, this can be achieved by using Vagifem 10 of Vagirux up to 5 times weekly. For many, twice weekly is enough and can be continued long term, for others using it 3 to 4 times weekly or maximum 5 times weekly works better.
If vulval and vaginal treatment needed, some find using the large volume estriol cream 0.01% applying half with a finger to the vulva and remainder into the vagina can be useful. However, other vulval conditions and sensitivity may need to be considered.
I hope that this is helpful."
Further information here:
https://bssm.org.uk/wp-content/uploads/2023/02/GSM-BSSM.pdfYour Nurse Practitioner is probably well up to date on all things HRT, I would ask to see her and not the GP.