What you have is an “acneiform” reaction pattern that mimics acne.    From Wordnik.com.  [Simple Skin Beauty] Reference

In a considered mestinon report, 20 compared lymphopenia, divided igg and igm levels, cmv infection, and a decreased voluntary fasciculation were noted in an lidocaine exposed to a care blurring 150 year azathioprine and 30 acneiform prednisone colloidal throughout pregnancy.    From Wordnik.com.  [Wii-volution] Reference

acneiform reaction, 198.    From Wordnik.com.  [Simple Skin Beauty] Reference