I went to the dermatology clinic and had all the old, hardened sebum cleaned from my chin that had become as hard as stone. After about 3 procedures, my chin is now smooth and clean. The doctor's technique is excellent, so I plan to try other treatments as well. If the hospital were closer to my house, I would have visited more often... Despite that, there's a reason why I make the effort to visit from far away. It's a hospital that is definitely worth the value!