Miconazole
"I  was on antibiotics and after finishing the dose I noticed it started to give me a yeast infection. I used the Monistat 3 day insert right before bed. Within a few minutes hell hath fury on my vagina! It's like the devil clawed and shot flames in my vagina then doused it with alcohol. I was so miserable and itchy. I didn't sleep much and had to lay on my side all Sunday. Walking even hurt and it was still burning like hell all day long. I read the ingredients on the back and there's a few flammables in there no joke. I will never use this product again. whoever developed this must be a sadist. DO NOT USE!!!!!"