Psoriasis is a skin condition identified by the occurrence of red itchy thick scaly patches of skin. There are certain types of psoriasis and each one occurring in different severity and skin discolouration. It is a complex medical condition and there is no real definite answer as to what causes it, but certain factors can contribute to the possibility of developing psoriasis. A family history of psoriasis, or particular pharmaceutical drugs, solvents, chemicals and emotional stress have been known to trigger the breakdown of the skin that leads to psoriasis in some people.
Guttate psoriasis can appear on the limbs trunk and scalp and the virus is often activated within the body after a throat infection. It appears on the skin as tear shaped drops, scaly and pink in colour.
Pustular psoriasis emerges as pus filled blisters or bumps that produce a glutinous clear fluid. In stages the pustules build up in to brown colour circular scaly blotches which then flake off. Inverse psoriasis although it is not generally considered to be a severe form of psoriasis, is still irritating, and commonly occurs on the joints of the skin, armpits, groin area and folds of the skin.
Erythrodermic psoriasis is a red scaly often itchy skin over large area of the skin and certain types of medication such as lithium have been established in causing eruptions on the skin.
Various treatments for psoriasis using coal tar based lotions are commonly prescribed but apart from it being messy and staining clothes, and the other more serious side effect is that it can make the skin more sensitive to skin exposure.
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