Dermatology deals with the diagnosis and treatment of skin diseases. Diagnosis sometimes depends of laboratory aids to confirm clinical impressions. Microscopic changes can be recognized to help determine the management and treatment of dermatoses. The understanding of the physiology of the skin and the diagnosis of skin conditions and diseases are necessary for the dermatologist. Treatment methods are more diversified than in any other medical specialty. There are internal medications such as anti-bacterial, anti-fungal, anti-histamines, hormones, sedatives and injectable medications. Topical therapy uses lotions, ointments, soaps, and compresses. Other treatments include physical therapy, ultraviolet light, x-ray and radium therapy, cryotherapy, and surgery. The influence of professors and teachers is very important in guiding students into the various aspects of medicine. In fact the teachers must be constantly learning as post-graduates to keep up with the latest developments to stay in touch with their students. Entering the field of dermatology requires the completion of a pre-med program, then medical school and then an internship in dermatology, and an additional 3-year program in the specialized career.