I’m assuming a bit of both. Im not familiar with the terms but I think I understand.
I’ve noticed with TRT, I’ll have smaller acne (perhaps the surface) if I forget to pin on a certain day, and usually on arms or chest. I liken that to my hormones being in flux. Usually goes away after a day or two or once I find my balance.
Though I definitely have/had sebacious as well. It’s not terrible, as I only have one or two at a time that hurt but could be more aesthetic. I have One on the back of my neck that is painful and bringing the question to the top of mind at the moment.