I get thrush really often...sometimes 2 - 3 times a month. It's really frustrating. For me, the creams/inserts I get from my GP help each time (and I get them refilled immediately so I always have it on hand).
If after 10 days it hasn't gone away, you can consider calling your doctor for something stronger (when I was 40 weeks pregnant with my DD, I had thrush that didn't go away with the usual treatment. So they gave me a 'super strength' 1-day treatment insert/pessary pill in the hopes we could get rid of it ASAP before my DD was born) and while it was kind of gross and I was leaking chunks of it for a couple days, it DID take care of the problem.
I've never gotten up the nerve to actually try any of the 'natural remedies' (I've heard raw garlic and live-culture yogurt are supposed to help, by inserting them internally) but I don't know any specifics and don't know anyone personally who has tried them, so I've never gotten around to trying on my own.
Good luck though... I know how annoying it can be!!