Puffed-up Pores
When it comes to skin pores that were distended or enlarged, experts said that the main cause of this problem is the accumulation of dead cells and sebum in pores. What causes the pore openings to stretch is a buildup of these stuffs which happens over time.
One of the possible solutions for preventing pore openings to enlarge is a regular use of retinoid as well as alpha- and beta-hydroxy acids and returning them to their smallest natural circumference. This can help purge pores of trapped debris.
Other than that, good skin care habits, such as not letting your make-up on overnight can help prevent the skin pores from getting plugged by sebum.  And, as commonly suggested, you need to protect your skin from the sun as UV rays can contribute to pore dilation.  So, avoid extreme exposure to the sun.