I have a pimple on labia majora, which has grown to a sizeable proportion and is causing a lot of pain while sitting, walking or any activity that causes skin or cloth to get in contact with the pimple. Earlier it was a very small bump, which started swelling up and turned red and painful and now slowly its head is turning white, like pus forming on top. I applyed benzoyl peroxide on it 2-3 times so far, however I'm not sure if that is the right way to go, as it hasn't helped yet. Should I continue using benzoyl for this?