Are you struggling with stubborn acne? Here are a few possible explanations why your pimples may not be going away. (1) You’re not using your acne treatments consistently. (2) You’re using too many drying products. (3) You’re using too many products in tandem. (4) Your diet may be contributing to breakouts. (5) You may actually be dealing with another skin condition. (6) You’re not washing your makeup brushes or pillowcases often enough.