Ixekizumab belongs to a class of monoclonal antibody drugs, commonly used to treat plaque psoriasis and certain types of related arthritis.

Otezla belongs to a class of drugs called phosphodiesterase 4 (PDE4) inhibitors, which are commonly used to treat psoriatic arthritis, plaque psoriasis, and mouth sores in people with Behcet's disease.

Psoriasis is a skin disease that comes in many forms, the most common of which is plaque psoriasis. The patches are red and covered with white buildup of dead skin cells called scales. This article will provide information about the diagnosis, treatment, and symptoms of plaque psoriasis.