marekuliasz/ iStock Everything from old habits to new trends can end up causing skin issues, dermatologists say. Using oil products, picking at pimples, seeing unqualified providers, relying on social media for advice, and using certain ingredients are all things dermatologists wish you would stop doing. Going overboard with anything — from braiding your hair to using tons of products — can negatively impact your complexion. View INSIDER's homepage for more stories.