Photonics has contributed significantly to public health in different ways: advancing rapid, cost-effective, personalized interventions; allowing the visualization of different biological structures, functional units and infection agents; or as the basic technology for the development of specific diagnostic devices. Dermatology, the branch of medicine dealing with the skin, has been one of the fields which has taken benefit of all the advantages of the photonic technologies, such as their high resolution, speed and the capability of light waves to penetrate various biological barriers without causing unwanted interactions.