I did accutane for a dew months 10 years ago and while I was on it this flat pink blotch showed up on my face (cheek). It has never changed size/color?

Accutane. Probably unrelated but if it changes size or color see a dermatoloxgist.
Seeing is believing! I suggest you get a Virtual Consult with one of our doctors and upload a well-lighted picture of your face. If you're not comfortable doing that, I recommend seeing a doctor. Most of the time a primary care doctor can diagnose the problem, but you may want to go straight to a dermatologist.