Try a clay mask!

Clay masks balance and cleanse, pulling dirt from your pores and tightening the appearance. Pores on your nose are actually tiny hair follicles, natural openings where oil reaches the surface of your skin. When oil and dead skin cells build up inside them, they can look larger or darker. Using a clay mask to tighten these holes, keeping them clean and choosing a mask with oils (grapeseed or sunflower are good choices) for oily skin will help.

Salacia Salts makes masks for your skin type, custom made to order.