13. Treatment with topical antibiotics, anti-acne medication and other topical treatments on the face within 14 days prior to treatment start. Use of topical corticosteroids within 2 weeks prior to baseline; only mild to moderate topical steroids are allowed outside the head and neck area. The area should not exceed 10% of the whole body surface area. In body folds, such as axillary and inguinal regions, only mild topical steroids are allowed in short term use (≤15 consecutive days).