Suggest Treatment For Vaginal Yeast Infection

I have been suffering from what I have been told is a vaginal yeast infection since December 2013. I am have had a number of hiv tests since then. I had an rna test at 2 weeks, an antibody test at 8 weeks, and a oraquick test at 130 days after. All were negative. I have been treated with monistat, diflucan, terazol 7, and boric acid suppositories. Nothing has helped. Could my yeast problem be due to hiv? I don t know what to do anymore.