Psoriasis is a chronic, inflammatory, skin disease. Characterized by itchy, thick, raised red areas of skin covered with silvery-white scars, psoriasis affects one in 50 adults. It can appear at any age and it often affects one’s relationships, ability to work, and ability to enjoy life. In this updated edition, Dr. Richard Langley presents a detailed look at all this too common problem. In accessible language he offers insight into the nature of the disease, its treatments, and their relative benefits and risks — information that enables patients to achieve a greater quality of life.