Open pores and blackheads?

I had a big black head right in the middle of my nose. I've just got it out really easily, but now i have an big open pore. What should i do to prevent dirt from getting in there and clogged again (so it doesn't get bigger). Should i avoid moisturizing, and products there general? Anything i can do to shrink pores?Open pores and blackheads?
its good to exfoliate once in a while so i suggest you take 2 advril pills (generic, uncoated). Dont eat them! take them and dissolve in a few drops of water in the palm of your hand. then rub them gently over your entire face for a few minutes. The active ingredients open up the pores and gets rid of dead skin cells--leaving you with smooth skin. try it out and comment. hope that helpsOpen pores and blackheads?
I heard you fill a bowl up with cool water and put your face in to close your pores. Also if you want to open them you put a wet hot washcloth over your face for a couple minutes. Then wait a couple minutes to put you face in the cool water. This process opens pores to clean them and then closes them.
Wash your face with whatever you use to wash your face daily. If you have anything to put on it that prevents acne, put that on it. I've heard that toothpaste works well, and it actually works on me. Just plain white toothpaste. Just put a little on.
I would avoid putting any cosmetics on it, yes. That includes lotions, makeup, and all the works. There's really nothing you can do to get rid of it faster. It will have to go away on its own. Just don't irritate it.