Psoriasis
Psoriasis is a skin disorder that causes skin cells to multiply up to 10 times faster than normal. This makes the skin build up into bumpy patches. On lighter skin, the patches can be red with white scales. On darker skin, the patches can be purplish, violet, or brown with gray scales. They can grow anywhere, but most appear on the scalp, elbows, knees, and lower back. Psoriasis can't be passed from person to person. It does sometimes happen in members of the same family.
As per Ayurveda causes of all varieties of skin diseases are common. Intake of mutually contradictory food like fish and milk, intake of unctuous and heavy drinks, suppression of natural urges like vomiting, sleep, thirst etc. Physical exercise in excess heat climate or after taking heavy meal, violation of laws of Ayurveda in exposing to heat, cold, fasting and taking food. Intake of cold water immediately after exposing to scorching sun. Intake of uncooked food and food before the previous meal is digested. Violation of laws of pañcakarma (5 purification procedures). Excess intake of foods like fresh grains, curd, fish, salt and sour substances; excess intake of black gram, radish, pastry, sesame seeds, milk, jaggery