ear pain and dizziness

I've had ear ache for 3 weeks now I went to the doctors last week and he said that I have fluid in my ear and it's a ear infection on its way out 
But today I feel very dizzy and my ears are hurting again.
How long does it take for it to clear? And what can I do in the mean time? 
Shouldn't if of cleared by now :( 

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