Psoriasis characterized by severe redness and shedding of the body surface.

The least common but most severe form of psoriasis. It is characterized by extensive skin reddening and scaling. This painful inflammatory psoriasis often covers roughly eighty percent of the entire body.

The least common form of psoriasis; causes widespread reddening and scaling of the skin; may be a reaction to severe sunburn or to taking corticosteroids (cortisone) or other medications. It also can be caused by a prolonged period of increased activity of psoriasis that is poorly controlled.

The least common type of psoriasis, in which a large area of the skin is bright red and inflamed.

A form of psoriasis characterized by widespread reddening and scaling of the skin often accompanied by itching or pain. Symptoms may be precipitated by severe sunburn, use of oral steroids, or a drug-related rash.

The least common form of psoriasis in which the skin of almost the entire body becomes red and fiery, and may cause difficulty regulating the body’s temperature and heart rate. People with this type of psoriasis may require hospitalization.