Miconazole
"A long while ago I tried the monistat 7day. This was my first experience with monistat. By the end of the 4th day it burned so bad I called the nurse hotline and they told me to go to the er. They said it was a "normal" reaction. I now use monistat 1day or night only.  So that I only have to deal with the pain for so much less of a time frame- and I recommend you do the same. Its effective and works well other than that."