I have cystic acne and very large pores. I use Tretinoin .0025% and that helps as I only get them occasionally, now. I've always had to stay on the Retin-A gel or else it starts all over again.
They hurt; they're big and very embarrassing for someone 61 years old. So much for growing out of teen acne. My face is so oily that I constantly have to blot it as it starts to feel like a thick oil slick if I don't. I have olive skin. I have one acne pit that is rather large due to an injection to the cyst.
When the cyst collapsed, it made a hole in my face which I still have 20 years later. I've been constantly at battle with all the oil and acne. I had a facial, and the esthetician said they were the biggest pores she had ever seen.