Tioconazole
"I have to admit I am quite surprised at all the negative reviews. I've used Monistat 1 every time I get a yeast infection and I never had any horrible symptoms as others described. I always feel relief within a few hours and my yeast infection totally clears up in no time. I'm wondering if the people who experience symptoms are not inserting the medication far enough inside. If you don't insert it correctly once the egg starts to dissolve the product could get on areas that are already inflamed/sore which could lead to more irritation/discomfort. Read the instructions to ensure you are inserting the product correctly!! I would highly recommend this product!! 5  stars!!!!!"