acne
"Mild stinging definitely occurs, I felt like I had a sunburn the first few weeks of using this.  Also, my face was super dry as a result of this medicine.  On the bright side though, I did see improvement within 2 weeks and that's what counts.  So just get a thick moisturizer to reduce the stinging and the dryness and apply about 10 minutes after letting the Benzaclin soak in, then you'll be all set."