A lack of zinc can lead to immune system problems as well as poor bodily function in general.  Thus, it is not a huge surprise that zinc deficiency has been linked to psoriasis.

Zinc may only have a positive effect on psoriasis only so far as it boosts the body’s ability to heal and resist disease.  In this way, a case could be made for any immune-system boosting supplement.

In general, Zinc promotes healthy bodily development, quicker healing and a strong immune system.  In addition to healthy skin, this common metal can also promote healthy hair and nails, both of which can be affected by different kinds of psoriasis.  Zinc also promotes nutrition absorption, which is vital for anyone who wants to cure psoriasis by eating the right foods.

Zinc has been used as a topical treatment for acne and herpes, but for the sake of promoting healthiness and fighting off psoriasis, taking it in orally would make the most sense.

Consult your doctor to confirm what kind of zinc dosage (if any) would be right for you.  Note: Consuming too much zinc (especially over a long period of time) is not recommended.