What is this on my arm? The skin around is rough, and it's the fifth time I've had to pop it. I have keratosis on my arms but have seen nothing like this before nudes by Hitmoth

Had a monster cystic acne on my chin for 2 weeks now that refused to do anything and I tried to squeeze it on camera to no avail. The moment I tried to do it in the mirror this was the result. 2 cores came out. O_o (holding a shirt up so the camera would