How long does it take Monistat (for yeast infections) to stop burning??? I took Monistat 1 on Sunday and I started taking Monistat 3 (because I thought the 1 wasn’t working) on Tuesday. I don’t have any symptoms of a yeast infection anymore. I tried having sex and it BURNED so bad I had to stop. Is it the medicine that’s causing it to burn because I feel fine other than when having sex or do I still have the infection????