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Erythrodermic Psoriasis (aka Exfoliative psoriasis, Erythrodermia psoriatica, Irritated psoriasis, Psoriasis irritabilis) is the rarest type of psoriasis.
Erythrodermic Psoriasis is a very severe form of psoriasis, which sometimes develops in the people with extended psoriasis in the progressive stage.
The most common triggers of Erythrodermic Psoriasis are: severe sunburn (or a burn caused by the UVB or UVA therapy), treatment with steroids, methotrexate or antibiotics; wrongful self-treatment, hot baths, energetic cleansing of the skin with a washcloth, infectious diseases (i.e. strep throat etc.), traumatic impacts, and others.
There is also possible the forming of the Erythrodermic Psoriasis with an unknown cause or without any obvious cause.
At first, on places, free from the psoriatic lesions, there appear multiple bright red lesions, which then merge, covering almost the entire skin. Skin becomes red, inflamed and starts scaling and peeling, accompanied by severe itching, burning and pain. There may appear cracks on the skin of the palms and soles. The skin on the face may become very tight and dry.
The general state sharply worsens, lymph nodes increase, the body temperature rises to 100°F-102°F (38-39 °C). This may cause difficulty regulating body temperature and heart rate.
Other symptoms may include insomnia, diarrhea or constipation, chills, and swelling. Hair may frequently fall out and the nails thicken.
Erythrodermic Psoriasis can last for several months or weeks and then, usually after intensive and prolonged treatment, it passes, leaving only the "on-duty" plaques on the elbows and knees.
Sometimes Erythrodermic Psoriasis can be complicated by inflammation of the lungs, kidneys, or by changes in the joints. In extremely rare cases it can be fatal.
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