Acne
"I began using Differin after I had an experience with some mild acne. The first two weeks were horrible - my acne went from mild to severe in a matter of days. However, that &#039;s how the medicine works. It pushes the acne out and allows your skin to heal. So even though the first two weeks are hell, it does work. Once the initial breakout clears you&#039;re home free."