Tioconazole
"I wish I had read these reviews before trying Monistat-1. Like everyone, I normally use the 3-day or 7-day treatment but thought I'd step up into more modern medicine. Within 20 minutes of insertion I was itching and burning. It's too much medicine and causes a very bad reaction.  Itching, burning, swelling, inflammation. The side effects are worse than the yeast infection itself. I'm on day 2 and still feel the reaction. The burning has subsided but I still have some itching and inflammation. What's worse is: I don't know if I still have a YI because the medicine's effects are so bad!!!! I will never use this medicine again and I'm passing this information on to every woman I know!"