I have a minor acne problem on my chin and the corner of mouth. I recently went to the dermatologist to find out how to get rid of it. She prescribed oral medication that treats acne. My question is how does the oral medicine know where the acne is and how does it clear it up? I guess I’m just really skeptical about this whole thing. Thanks!

The medicines are antibiotics. They get rid of all the bad bacteria in your body. This will also get rid of acne because acne is caused by bacteria.