Tioconazole
"I wasn't even convinced I had a full blown YI, but with the irritation I decided to get the 1 a day. I used said product around 11pm - it is now 5am and I'm wide awake after sitting in a cold bath because I feel as tho I've been stung by fire ants. This is ridiculous I don't remember anything burning this bad. I wish I would've read reviews first."