Dr. Abigail Waldman, MD FAAD on Instagram: "If you have psoriasis you may be more likely to be deficient in vitamin D, especially for severe plaque psoriasis. Repleting vitamin D by supplements, topical calcipotriene, or via phototherapy can help clear the skin for some, but not all, patients with psoriasis. Always seek advice from a Dermatologist when dealing with severe cases Follow if you are your loved one suffers from psoriasis #psoriasis #vitaminD #dermatology"