I will make a post for removing pimples...but i found two solutions for now:
Mix nutmeg powder with a little unboiled milk and apply on acne or pimples and wash after an hour this remedy when done once or twice a week will not leave any acne marks on the skin .
But one that i use would be garlic juice...i know it smells horrible but it will really help...it really works and i have a bit of oily skin as well but do try it first, check it out and then use it once or twice a week!
Also if u steam ur face (with drops of lemon) that will help...like u say u have oily skin and oily skin attracts dirt and the pores are blocked by this that's why u get blackheads and pimples...make sure u do this and don't forget to drink 8 glasses of water regularly!!