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Two prescription medicationsâVectical and Dovonex, which are applied to the skinâinclude vitamin D as their main active ingredient. Edee Scott, 72, of Corona, Calif., says vitamin D medication has helped calm her psoriasis, which is most severe on the palms of her hands and feet. She's had psoriasis since age 14, but it's only in the past 15 years that her psoriasis has taken on a life of its own, she says.
Studies have not shown a direct link between vitamins and dietary supplements and psoriatic disease. Yet many people with psoriasis and psoriatic arthritis find that including vitamins and supplements in their diet helps their skin clear and may ease joint pain.esearch on whether vitamin D can help alleviate psoriasis symptoms is small and limited. A report in the May 2011 Science Translational Medicine journal, found that vitamin D helps counteract the body's response to inflammation associated psoriasis.