acne
"It's true. The first two weeks really are horrible. So make sure you don't start this if you have big plans coming up. I broke out in huge spots, my face was red and tender and my skin was flaking off in big pieces. You can not wear make up at this point. If you get cracked corners of your mouth like I did, hydrocortisone 1% really is your saviour. Cleared it up in two days. I moisturised throughout the day with cetaphil and cleansed every morning and night with cetaphil cleanser. Two weeks later, my skin is almost clear. My dryness is almost gone and the scars are fading. 

Stick with it. It really works. It just gets worse before it gets better"