Talk to Dermatologist on Open Pores

Hi dr's I have been on tretinoin treatment along with other prescriptions due to acne and pigmentation which is now cleared but i have been facing open pores from quite a long time now only on small area of my cheeks (close to my nose). Can i please get to know about the type of serum i can use for open pores. Also any dr in faisalabad region who i can consult with. Thank you.