Psoriasis is a chronic skin condition caused by an overactive immune system. Symptoms include flaking, inflammation, and thick, white, silvery, or red patches of skin. Psoriasis treatments include steroid creams, occlusion, light therapy and oral medications, such as biologics.
Steroids Often Prescribed for Psoriasis, Countering Guidelines
Their use may cause skin flare-ups and isn't backed by evidence, study author says
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