What Is The Treatment For Acne In The Face?

am josephine fron nigeria and iam 19 yrs i have a oily skin and this have cause so much pimples on my face with blacc spot as well rifgt now i cant go to school my face is too bad i have tried every thing they told me but all to no avail i really need ur help am going to my sister weeding on saturday naxt week and with this face like this am confused pls help thanks