Applying oilfree moisturizer to your face every morning after washing, it will make pores bigger?

Every hair follicle has a gland that secretes sebum to lubricate the hair. If the hair falls out the gland keeps going. When sebum hits air it turns black. That is why you have black spots all over your nose and cheeks. If the pore is closed by skin then the sebum remains white and you have a whitehead. You have no control over the size of the pores. There are various methods to treat pores, but it is unusual to find two people who use the same method. You can search youtube.com and/or instructables.com to see what is available.