Yea yogurt is good for yeast infection because the meds they give you can kill the good and bad bacteria. There's a specific culture in yogurt that helps out your cha cha. It also helps balance the p.H levels which can cause itching/burning.
My whole life i've had 1 slight yeast infection. I caught it at the burning and it healed before it got severe. I didn't have one my entire pregnancy or after. I'm not gonna speak too soon, cuz my luck, i'll jinx myself and wake up itching!! Hahahaha!!
Good luck and i'm glad your cha cha is feeling better!!
Sarah