and the response to fluconazole (Diflucan) favors yeast, even if not complete - you're right that it takes several days for symptoms to resolve completely after yeast treatment. Finally, taking prednisone
indeed can predispose to yeast
infections, but not herpes. Finally, usually herpes would cause specific sores.
So it is a judgment call as to whether you need herpes testing. If you happen to have a positive HSV-2 result, it won't necessarily mean herpes was the cause of your symptoms.