This is a very good question.
I am a medical doctor but I also suffer from acne, and during my school days I can swear anecdotally (at least) that during times of stress, the pimples start popping out on the faces that I see.
This is confirmed by a study ofand .
So why is that?
I like to think that it is probably multi-factorial but aseems to reveal that stress has nothing to do with increased sebum production (ie an oily face – hence clogging pores, a step towards acne formation).
The other reason is hormonal. During periods of stress, Corticotropin Releasing Hormone (CRH) surges in the blood. This hormone has an important role inand seem to .
The exact pathophysiology is not fully elucidated but it is generally agreed that stress can worsen acne so, why worry! Chill out for your healthy skin!