Hello, I Am Suffering From Recurrent Vaginal Thrush. I Have

Hello, I am suffering from recurrent vaginal thrush. I have recently been prescribed 3 x 200G Canestan Clotrimazole pessaries, to use over three consecutive nights. I used the last one on Sunday and I still have thrush. I take 20mg of Citalopram every day. My question is there a contraindication with Citalopram and the Canesten oral capsule? I could get one of these to hopefully clear it for a while. It's making me so miserable and a normal sex life with my partner is impossible.
Thanks for your help :-)
Tracey