How to COMPLETELY clean out my pores?

There are blackish dots on my nose and I am pretty sure they are deeply clogged pores. I have tried steaming for an hour, many masks, I am not sure if these help pores but I’ve had many peels (I had to stop because my skin is really sensitive), home remedies, and anything else I could find! NOTHING WORKS! And I mean nothing! NOTHING worked the slightest bit to even clean out a tiny bit of my pores!
First of all, I do want to make sure that these ARE clogged pores.
Second, I have been to at least seven dermatologists. NOTHING worked!
It is driving me crazy! If you have any idea of something that actually DOES and WILL work, please tell me! I will be so extremely grateful for the rest of my life!