system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How come other mammals don't get pimples/zits?

Serious question. I get pimples some times on my head so I know they can exist when there is hair. Don't all mammals have pores? ELI5 please.
gpt
It is true that other mammals get "pimples".  They are commonly seen in dogs due to skin infections (pyoderma) and on cats chins where there's a reaction to plastic food/water bowls.

You rarely see them because 1) they have coats of hair hiding them, and 2) if they are bothering the animal, they will scratch and groom it, which pops it to form an "epidermal collarette" or simply a rash where pimple was.

Source: 4th year vet student.