Psoriasis refers to a group of chronic skin conditions that can affect any surface on the body, but typically involves the scalp, elbows, knees, hands, fee, and genitals. The most common type of psoriasis features thick red scaly rashes; but other versions can have pus-like blisters, intense redness or swelling, or smooth red lesions. Psoriasis treatment varies significantly by the type, severity, and location of the psoriasis. Treatment options include topical medications, phototherapy, oral medications, and FDA approved injectable biologic therapy such as Enbrel or Humira.