Good question. I just started using Plexion cleansing cloths 2 days ago (which is sodium sulfacetamide and sulfur) and I've gotten more breakouts as well. So while I don't have an answer, you're not alone.

ive use it for a month and my skin is worse than before. i am stopping completely and going back to the dermatologist. i find that if it works for most people, it does not work for me. salycylic acid, benzoyl peroxide, etc.