People with dry skin don't have visible pores, hatejeans. Chances are your skin isn't oily at all.
Oily people get big pores. There are a few pore minimizing serums on the market that fix the problem daily. When you stop using them, they come back. Use a good detergent free cleanser (one that doesn't suds much), stay away from thick or cakey foundations and powders. Give your skin a break from makeup at least one day a week. Get on a moisturizer from a professional skincare line, like MD, Murad, Dermalogica, Clarins, Shesiedo, PH Balance, that is designed to help control oil production. Most of these lines make a moisturizer that will help your skin learn to hydrate itself without over producting oil.
By the way, although the asprin mask is effective, I really wouldn't recommend it daily as it's pretty harsh on the skin. Save it for special events and get pore minimizing serum to do under your moisturizer on a daily basis.