thrush that won't go away for 2 weeks!!! help!

Hannah
I've had thrush for 2 weeks now. I got it after having unprotected sex with a guy we went at it for a bit lol he came in me and was super sore after then woke up with thrush. I took the oral tablet and cream and it didn't work after 3 days I went to the doctor who prescribed me speacil antibiotic to treat it and cream you insert and eventually went away for 2 days and it came back ahhhhr! I went to the chemist and got the pessery tablet you intert and cream again, it's improved a little but still really bad 2 days later! I've been quite stressed the past 2 weeks so I don't know if that's not helping?
Any suggestions to help get rid of it? I'm super hygienic I shower daily and haven't been douching incase it could heighten it until it goes away!
Thanks! 
UPDATE. I forgot to meantion I've started taking pro-bodics as of a few days ago to help