This document provides an overview of medical therapy in dermatology, including general aspects of treatment, topical therapy, and commonly used topical treatments. It discusses key considerations for topical therapy like drug concentration, vehicle choice, application frequency and quantity. Topical corticosteroids are highlighted as a major treatment that revolutionized dermatology, though they require proper use to avoid side effects. The document also reviews systemic therapy, phototherapy, radiotherapy, physical therapies and laser therapies.