Fluconazole
"I had my very first yeast infection from taking antibiotics to treat my first bladder infection (back to back pain and discomfort within a few days!) - I was so swollen and raw  up there :( My doctor did a pelvic exam and told me to take the one dose fluconazole pill. Within 24 hours the terrible twinging I felt disappeared but the biggest reaction was (warning, totally gross) all of the yeast just tumbled out of me the following day when I went to the bathroom! The medicine just ejected all of the junk inside of me. I'm still on the mend (I took the pill yesterday afternoon) and there are some teeny twinges up there, but I'd say I am 80% healed. No side effects other than the healing. Hallelujah!"