Dermatologists are therapeutic specialists who analyze and treat illnesses of the biggest organ of the human body that is skin. They advise patients how to take care of skin and make it healthy. Dermatologists take medical histories and utilize a dermoscope, or amplifying or illuminated device to identify diseases or malignancies. They may utilize diagnostic tests, for example, biopsies, to distinguish the abnormalities and decide suitable treatments. Different of specializations incorporate corrective dermatology; pediatric dermatology; and dermatopathology, or the investigation of skin infections.