It's very simple what you have to do.

Drinking plenty of water, green tea is the first.

Secondly never EVER use soap or anything perfumed on your face. Wash your face once a day in luke warm water, or as I do twice a week roughly. Around once a week I massage cold pressed sweet almond oil onto my skin, and if I have too many plooks I put a little of a tea tree oil in it. Be very careful not to put too much tea tree oil in, just a few drops. Massage gently into your skin in a circular motion with the palms of your hands and let it soak into your pores, you'll probably have to keep wiping it out of your eyes. It's not good for your eyes, especially the tea tree oil, but as long as you are careful it wont blind you or anything if you get a little bit in your eye. It'll just make your vision go a little blurry.

Hemp oil is also very good for your skin but it's more expensive.

You'll have the complexion of a school girl in no time if you do that.