AZO Yeast Plus?

Is it safe to take AZO Yeast Plus while pregnant? I am currently 27 weeks and recently got a yeast infection. Before getting pregnant around October, November, I got a yeast infection and took AZO Yeast Plus which helped with itching and discharge. Is it safe to take now that I'm pregnant? What's an at home remedy to treat a yeast infection? Or should I consult my doctor and ask for a prescription? I refuse monistat since it burns and irritates way worse. 
I am currently waking up at night due to itching and have minimum discharge, but the itching it is what bothers the most. I have tears from scratching in the middle of the night. :/