Still have BV

I had to switch OB’s because the one I had before was making me feel uncomfortable. The new one I saw today tested me for BV and I still have it. My old OB thought it was yeast so gave me diflicen, that wasn’t the case. My new OB thought other wise, So she put me on another round of flagyl. I hurt so bad down below, it burns and sometimes aches. She said hopefully this will be the last of it. Has anyone had to go on 2 rounds of this medication? I’m 19 weeks and 3 days. I need relief. Is there anything I can do other than take the meds that will relieve the discomfort? 😩