Well speak of the devil I did get a pimple. It isn't too bad, but large enough to bother me a bit. I woke up with it this morning. I think it could be from this bad cold I have though. I don't usually get sick but it seems it's never good for the skin, which makes sense.
I also ran a half marathon in warm weather a few days ago and sometimes sweating for so long makes me break out.
Crossing my fingers it's a fluke thing and after all I'm only 3.5 months in (it's a 5 or 6 month course).