Justifying common treatments for which scientific data is old has become more challenging

Even though dermatology is the oldest medical specialty, there are probably more unanswered questions in the field than in other specialties because we can visualize our organ of study 24/7. Thus, more observations can be made, allowing the formulation of more questions to answer. Patients probably ask more casual questions of spouses, family members and physicians regarding their skin than any other organ, as well.