Tioconazole
"While this product may work to treat the problem, the side effects are awful. I not only experienced itching like no other and burning that could only be relieved by finally falling asleep, but this morning I had sudden shortness of breath. I am not allergic to the drug and was not experiencing an allergic reaction. I did some digging and found a study that mentioned out of 167, 14 people experienced shortness of breath on monistat 1 and they all had depression. I have depression and was not aware this could happen, so long story short beware if you have depression and use this."