Table 1 Evaluation of active acne*
Lesion | Severity | Index definition* |
|---|---|---|
Comedone | 0.5 | Horny follicular plug and pinhead-sized follicular papules |
Papule | 1.0 | Infiltrated papules 2–8 mm |
Pustule | 2.0 | Pustules 42 mm with surrounding inflammation |
Infiltrate | 3.0 | Nodules and infiltrates: 48 mm and coalescent papules where individual papules cannot be distinguished |
Cyst | 4.0 | Lesions where infiltrate has broken down to form discharging cyst |