well for oily skin you should not use soap on your face. Soap is really harmful for the face, Try to use natural things like use tomato, lemon and honey. These are home remedies and really helpful for the skin. Apply tomato paste on your face and leave it for 15-20 minutes than wash it properly and you can see the difference on your face. Same as honey+lemon. Take these both things in equal quantity and mix it well than apply on face and leave it for 15-20 minutes and than wash. Your face will glow and it also prevent to blackheads and pimple.