Fluconazole

Doctor prescribed me fluconazole 100mg oral pills for my yeast infection to take for a week. Has anyone else got 100mg? I've only heard about 150mg. And how long does it take for them to work? Yesterday was my second day and it still wasn't ok, last night I started a course of vaginal probiotics as well, simply because after I'm done with fluconazole I get my period right away and I'm scared it will cause another series of yeast infection. So now I can't really tell if it's getting better or not due to probiotics capsule residue.