How might vitamin D help with psoriasis?

There is a complex relationship between vitamin D and psoriasis. Research suggests that if the body does not process vitamin D normally, psoriasis symptoms may become worse.

Because of this, vitamin D features in some oral and topical psoriasis treatments. Some studies have found that, when used alone, these treatments produce similar results to corticosteroid-based treatments.

These treatments may be even more effective when used in combination with a high-quality topical steroid. In fact, a recent study found that the combination of a topical vitamin D treatment and a topical steroid was more effective at treating scalp psoriasis than steroids alone.

However, when used alone, the vitamin D treatment resulted in a significantly higher risk of adverse side effects, compared with using the steroid treatment alone.

These adverse side effects included:

  • Itching
  • Yeast infection
  • Red, inflamed, dry skin
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