Final answer:
The first-line treatment for psoriasis is topical corticosteroids, which help to reduce inflammation and alleviate the symptoms. They are applied directly to the skin and the specific type to use is determined by a healthcare provider.
Step-by-step explanation:
The first-line treatment for psoriasis is topical corticosteroids. These medications are applied directly to the skin to reduce inflammation and alleviate the symptoms of psoriasis, such as redness, itching, and scaling. Topical corticosteroids come in various strengths and formulations, and a healthcare provider would determine the appropriate type based on the severity and location of the psoriasis. This treatment aims to suppress the overactive immune system response associated with psoriasis and to provide relief from its symptoms.