How is the skin condition Psoriasis usually treated?

Psoriasis cannot be cured although symptoms may disappear for long periods. Conventional treatment is aimed at controlling the condition and ranges from simple topical treatments such as moisturizing and lubricating products and corticosteroid creams to exposure to ultraviolet light. Very severe conditions may be treated with anticancer medications.

While conventional treatments can be very effective, they can also be extremely harsh - especially in the long-term -- and many treat only the external symptoms.