Natural treatment of thrush in pregnancy; anyone tried yoghurt?

I've had thrush for about 5 weeks, with varying severity of symptoms because I've been using clotrimazole (canasten) and even tried the pessary. The pessary stopped symptoms fully for about a week, but now its back.

Has anyone tried using natural, unsweetened yoghurt internally, as a treatment for thrush in pregnancy? And did it work?

i had terrible thrush when i was about 6 months pregnant, my mum told me to use yoghurt i looked at her like she was crazy! but i gave it a go, it seem to work really well and certainly cooled everthing down for for me! i want to bed with a huge pantliner like a tena lady and just put loads on and inside its stinks by the morning but it did help me!
i hope my advice works good luck and congratulations x