Toxicity and Efficacy Evaluation of Topical Minoxidil in Acne Vulgaris

Split face: 2% or 5% topical minoxidil solution applied and no treatment Description: Subjects will apply the 2% or 5% topical minoxidil solution to every inflammatory acne facial lesion on one half of the face and no treatment to every inflammatory acne lesion on the other half of the face twice a day for 4 weeks.