A nurse is teaching a client who has psoriasis about possible treatment options. Which of the following treatments should the nurse include in the teaching? (Select all that apply.)

Rationale: A. Coal tar preparations help reduce scaling, itching, and inflammation in psoriasis by slowing the rapid growth of skin cells. B. Topical corticosteroids are first-line treatments for psoriasis because they reduce inflammation and suppress the immune response in the affected skin. C. Laser therapy is not a standard treatment for psoriasis. Phototherapy (broadband or narrowband ultraviolet light) is used instead. D. UV light therapy (especially narrowband UVB) slows skin cell turnover and reduces scaling and inflammation, making it an effective option for moderate to severe psoriasis. E. Psoriasis is an autoimmune condition, not an infectious process. Topical antibiotics are not used unless a secondary bacterial infection develops.