Pro biotic drinks are little Yoghurty drinks that have live cultures in it.
Uk brands are Actimel, Yakult & Muller.
I know for a FACT they work for me as i ran out last week and within 3 days my thrush was back with avengence! & within 3 days of being back on them my thrush is finally subsiding again.
There's also a suppliment called Threelac that helps. But the drinks are far cheaper!
It's what works for you i guess!