Tioconazole
"MY DEAR GOD!!!  This is the worst experience my vagina's had since 2011, when it pushed out an 8lb kid!!  I'm currently spending the week at a beach resort with my family, and on day 3, realized I was getting a yeast infection from all the time spent in the water.  Since I'm 10 states away from my Dr, I popped into the local pharmacy here to grab Monistat 1.  As soon as I inserted this monstrosity of a cream, the burning/itching/pain intensified to unholy levels.  It's been four hours of hell!!  I'm now sitting here in the living room of my hotel, straddling an ice pack, hoping that this stops.  My poor poor vagina!!!"