After a few weeks of hell - vaginal burning, heavy pelvis, I have now discovered it was a bad case of thrush caused by the loading dose of (internal) Ovestin. Frustrating, as the original urinary symptoms had started to ease. Does this now mean that Ovestin will cause thrush every time I use it? I had similar issues with Vagifem. Or does this improve over time? Should I consider swapping to something like Intrarosa or Estring?