Is Acne on nose area related to rhinoplasty? 3 years post op.

I’ve had my rhinoplasty 3 years ago. They took some of my rib to give me a defined bridge in addition to alar reduction. I noticed that since then, I have been getting acne on my nose. It is usually a big one that does not form a pus on the surface. As a result, you can see a big bump right smack in the middle of my nose. I usually have one big bump every two months. I get rid of them by using a sterile lancet, squeezing out the pus that is trapped underneath, then applying a colloid patch.