What type of medicine is good for super itchy and burning vagina?

First, it's imperative to determine the cause of the severe itching. Is it a dermatology problem like lichen sclerosus? A yeast infection? An allergic reaction? I recommend having your gynecologist examine you to determine the cause. A cortisone type cream would worsen a yeast infection, for example. A correct diagnosis leads to appropriate treatment.

You can try a warm sitz bath with baking soda 10-20 minutes, several times a day as a trial. If there is no relief and your vagina opening has material like cheese, you probably have yeast vagina then you can use monistat OTC.