usually some oils and shit, but also, I'd check into getting me some new blades. You're blades either need to be replaced or need to be oiled. I don't use clippers becuase it doesn't the job for me, but I use a Gillet Razor and I'm straight. the Mach3s do me good, but you have to lather under your chin as well. don't mess around with dry skin. Gillett products usually do good for me since I usually get ingrown hairs. Also, make sure you wet your face up with a warm or hot towell, the hotter the better since it'll open up your pores and allow for the hairs to be taken out faster.
One other thing, if you can, try pulling our your hairs with tweezers, so as to prolong them coming back for about a couple weeks, I do that to my stubborn spots.
Good luck