Stress and fatigue are two main reasons why pimples pop up last 2 days ago. Grgrgrg! I forgot to washed my face and took off my make-up so I ended up sleeping without cleaning my face. I was so tired from my errands left and right that I just went to bed immediately the moment I brought my son to his bedroom. See? I am not a good example so don't follow me. No matter how tired you are, make it a priority to at least wash your face with soap and water and moisturize it. There are acne home remedies of course to the rescue like ProNexin but good hygiene is still advisable. Agree?