Psoriasis treatments include topical medications, light therapy, systemic treatment and biologic therapy. An estimated 7.5 million Americans suffer from the immune system disorder, according to Everyday Health medical experts.
Topical treatments include salves or lotions applied directly onto the lesions. The steroids of such medicines slow cell reproduction and alleviate inflammation while soothing the itch and removing scales. Active ingredients include coal tar and salicylic acid, notes Everyday Health.
Light therapy focuses ultraviolet rays directly on skin lesions caused by psoriasis. Injected or oral systemic treatments use immunosuppressant, antimetabolite and retinoid medications that benefit the entire immune system. Biologic therapies target particular areas of the immune system responsible for the development of psoriasis, according to Everyday Health.