Pimples pop up on teen faces all the time. In fact, 85 percent of adults have experienced an outbreak of painful, embarrassing zits at some point. So wouldn’t it make sense for these people to feel sympathy for others with acne? After all, they know what it feels like. But a new study shows that this often isn’t what happens. Most people respond to images of acne with disgust and fear rather than understanding. And acne provokes stronger feelings of revulsion than most other skin conditions, the new study reveals.