VA = vaginal atrophy. As oestrogen levels drop the body may become dry: inside and out; skin, deep in the ears, scalp, nostrils, vagina, anus; my insteps itched when I took socks off every night for months

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Vaginal atrophy mimics repeated urine infection-type symptoms really really well which is why GPs continue to prescribe antibiotic treatments. ABs will ease VA symptoms but won't replace the oestrogen which causes many of the symptoms.
'vagifem', 'ovestin/estriol' and other prescribed treatments really make a difference to symptoms. The idea is to use every night for 2-3 weeks then as necessary: usually every 3rd and 5/6th. night though some require nightly insertion for months. Occasionally VA can flare up = doing a reload of at least 5 nights.
Sometimes 'vagifem' is helpful with a smear of 'estriol' on the outer vulva/labia. It's Trial and Error and once a regime is found that suites, ?? it's best to stick with it. When my symptoms niggle I put an extra 'estriol' into the vagina in the day as well as swallowing 2 Nurofen which helps me.
Which symptom is bothering you the most ? Some find that keeping a mood/food/symptom diary of use to chart progress.