According to WebMD, Monistat is a medication used in the treatment of vaginal yeast infections. The generic name of Monistat is tioconazole. Monistat ointment helps reduce vaginal burning, itching and discharge that occur in the event of a yeast infection.
According to WebMD, side effects of Monistat include headache and vaginal burning or itching. The majority of people who use Monistat do not experience serious side effects. Having a severe allergic reaction to this medication is highly uncommon. According to WebMD, symptoms of a concerning allergic reaction include a rash, itching or swelling, dizziness and difficulty breathing. Monistat may be unsafe if swallowed.