Yeast infection not going away ):

I tried everything !! I used the pill fluconazole and it didn’t work, then after I told my GYNO, she prescribed me Terconazole and that didn’t work either. It’s not going away and I still have itching and burning. I was also tested for STDs and came back negative on all. I don’t know how to get rid of this I just wanna be healthy again ): can anyone help?

(Also a side note, I haven’t gotten my period since this started, which was 3 weeks ago ): )