Psoriasis is a chronic, benign, non-contagious skin inflammation that presents itself in the form of a rash characterized by redness and fixed silvery scales on the scalp, elbows, backs of knees, buttocks, and lower back, as well as around the ear canal. Oftentimes a genetic predisposition exists. Psoriasis can also sometimes affect the joints-a painful condition known as psoriatic arthritis that presents with morning joint pain/stiffness and swelling. Factors such as stress, infections, obesity, alcoholism, smoking and certain medications can cause symptoms to worsen. Treatment involves identifying the severity of the disease to determine the best treatment option and avoiding risk factors. Typically, the treatment starts with topical corticosteroids and can also involve oral medications or injectable medications.