Hi there
Try to answer your questions in some sort of order (I use Oestrogel too)
1 The Mirena won't always stop you ovulating. It works by stopping the lining building up, preventing a bleed, but won't always stop you ovulating. Did you have it fitted for birth control or heavy periods?
2 HRT can't 'wake up' your ovaries. When all the eggs are gone, they are gone :( Unless you've not had a natural period for over 12 months then you are still in peri and can still ovulate, even with long gaps between cycles.
3 Using oestrogen ( gel, patches, pills) may well increase vaginal mucus- that's a good thing, not bad. It stops your fanjo drying up !
4 There is no such thing as 'oestrogen dominance'- that was something made up by someone who wanted to sell progesterone cream (which doesn't work anyway). Meno symptoms are caused by low oestrogen .
The normal dose for gel is 2 pumps. You can increase to 4 a day until you get symptom control.
Not sure why your Gp felt she was 'giving in' by letting you have the right treatment?. Mirena plus gel is considered the gold standard by many gynaes so she's out of touch.
Applying the gel- you can apply to either your upper arms and shoulders or thighs (the leaflet in the pack shows areas of application) and tells you to avoid using anything on the skin for 1 hour afterwards, or washing.
Maybe for the times when you need sunscreen you could apply it at bedtime only ?