Plaque psoriasis
There is no known prevention. Keeping skin clean and moist and avoiding your specific psoriasis triggers may help reduce the number of flare-ups.
Doctors recommend daily baths or showers for persons with psoriasis. Avoid scrubbing too hard, because this can irritate the skin and trigger an attack.
Habif TP. Clinical Dermatology. 4th ed. St. Louis, Mo: Mosby; 2004.
Luba KM. Chronic plaque psoriasis. Am Fam Physician. Feb 2006; 73(4): 636-44.
Stern RS. Psoralen and ultraviolet a light therapy for psoriasis. N Engl J Med. 2007 Aug 16;357(7):682-90. Review.
Menter A, Griffiths CE. Current and future management of psoriasis. Lancet. 2007 Jul 21;370(9583):272-84.