Yeast infection of what?

I have been having yellow discharge and yeast infection like symptoms but I went to the doctor last and they tested me for std and it came back negative and said it looks like yeast cause they did an exam and they gave me two round of yeast infection pill that you take once and it’s supposed to clear up and it still didn’t clear it up. It’s been a whole month. I’m not having cottage cheese discharge just itching burning and slight bleeding and just feel irritated and I get swollen especially after sex. Could this really be a yeast infection that does not want to clear up 😣