Stop leaving your zit poppings on the employee bathroom mirror or at the least, don't make it so oblivious who you are.
When you have those fresh lil welts with dried tips on your face, it totes you. We all know it. The post its left up (next to the booger wall stackers) hasn't seemed to worked.
Just stop before I bring it up at the next meeting and allow everyone to know who you are by looking at you.