Use the vaginal atrophy treatment ASAP! It is more localised so more likely to ease symptoms of dryness, repeated need2P etc.. Urine infection symptoms mimic atrophy really really well.
I don't require other HRT, some ladies find that it helps VA as long as they use appropriate treatment. Let us know how you get on. When I feel the need2P I take 2 nurofen 3 times a day to ease the nip as the urine flow stops.