Hello Nancy, welcome to the Forum.
I wonder if you are getting enough oestrogen to the genital area. You don't say how many Vagifem a week you are using so there may be scope for an increase there. Also, many women find they need the addition of an oestrogen cream such as Ovestin to apply to the labia, as Vagifem does not always help there. Are you taking any systemic HRT, as that might help. You can also apply whatever Yes product you have to the vulva, or an emollient such as Epaderm or Hydromol to ease soreness.
I'm sure you will get plenty of advice from others here, but another good resource, where you can pose the same query, is the private Vaginal Atrophy Facebook support group. There are many women there with the same issues and excellent advice and written resources are available
Best wishes,
JP x