I suffer with thrush.
Managed to keep it under control for over a year but a course of antibiotics got the cycle going again!
Anyway here is what I’ve observed and learnt from my google PhD.
First, you need to blitz the Candida, which unfortunately kills all the bacteria - good and bad!
I find I have to use a mixture of pessaries and oral tablets over a few days. I have had thrush twice on holiday in Europe and both times the pharmacists have given me products that you use for several days rather than a single does treatment that you get here. The longer treatment has always worked better for me.
Then you need to restore all the bacteria that you wiped out.
I use multi gyn acijel. This stuff is amazing! It works simply by keeping your vagina at ph level that inhibits the Candida from growing. They also sell a version for thrush, but it comes in separate single use tubes and works out quite expensive. It probably works slightly better than the multigyn but the multigyn will last me ages.
When the thrush is active it really stings for a short while. I use it daily for about a week, then every over day, then twice a week. Then once a week, then eventually just when I feel a bit dry/sore (usually week before period due to changes in hormone levels) I also use the morning after sex or after I’ve been swimming or had a bath. I also use instead of lube.
It comes with an applicator but I use an old carpool syringe. I find 2.5ml is enough for me, anymore and (tmi) I can notice it leaking.
I usually buy it in multipack from amazon.
Also only 100% cotton underware, cut down sugar/yeast, drink lots of water, take decent probiotics.