Is there any way my pimples/post pimple marks can fade my saturday?

Saturday is a VERY important bar-mitzvah and it is crucial for me to have clear skin. i am young, and my skin is oily, but i go to a dermatologist and i take a prescription oral medication along with different creams [duac&differen] Is there any way my pimples will be able gone by saturday? what about the red marks that are left over from my pimples that i have right now? What toher things can i do to help? thanks for the help :]