7. Treatment with over-the-counter topical medications for the treatment of acne vulgaris including benzoyl peroxide, topical anti-inflammatory medications, corticosteroids, α-hydroxy/glycolic acid, including lactic acid lotions (Am-Lactin, Lac-Hydrin), urea cream (Carmol 10, Carmol 20, Carmol 40, Urix 40), salicylic acid (Salex lotion), topical corticosteroids within 4 weeks prior to baseline.