Psoriasis is a chronic non infectious skin diseasein which itchy, scaly rashes are formed at, most commonly, sites like the scalp region, behind the neck, lower part of back, around knees and elbows and genitalia.
In ayurveda psoriasis is co-related with kitobha kushta.
" श्यावं किणखरस्पर्शं परुषं किटिभं स्मृतं | "
(White , rough patches over the skin)
This skin condition has very good treatment in ayurveda.
Panchakarma detoxification therapies like Deepana pachana, Vamana and virechana is done followed by intake of Ayurvedic vikrita dosha shamana medicines.