Clear

Residual hyperpigmentation and eyrthema may be present

Almost clear

A few scattered comedones and a few small papules

Mild

Easily recognizable; less than half the face is involved

Moderate

More than half the face is involved; many comedones, papules, and pustules; 1 nodule may be present

Severe

Entire face is involved; covered with comedones, numerous papules and pustules; few nodules and cysts may or may not be present