It is described in Ayurveda as Kushth with appearance of fish like scales on the skin. Vitiation of vata and Kapha dosha along with mental stress are considered to be the main reasons behind kushth roga.
The low potency poisons get accumulated in the body at various places due to any of the following reasons:
• Simultaneous intake of foods with opposite qualities like yogurt with milk or fish with milk or ACHAR (Pickle) with milk or honey with ghee (butter) etc. These are opposite foods and if taken together, they produce slow poisons in our body.
• Using cold drinks and cold water under stress or after having hard physical work.
• An injury to skin
• Taking heavy meals within short durations without getting earlier meals properly digested.
• Having sex within one hour after taking meals.
• Sleeping during day time.
• Stopping the natural urges or vegas (waste disposal system of our body) like stool, urine and semen etc.
• Taking heavy meals throughout the day in breakfast, lunch and dinner.
• Excessive use of yogurt, black pepper and sea food in regular meals
• Lesser exposure to sun light
These factors lead to contamination of toxins in the deep tissues like rasa (nutrient plasma), rakta (blood), mansa (muscles), and lasika (lymphatic). This production, accumulation and contamination by poison or toxins in our body eventually lead to their flushing out in the form of psoriatic lesions through skin. Psoriatic lesions are just the symptoms of problem in our system.
Ayurveda emphasises on internal cleansing and purification of the blood to get permanent or long-term relief from the lesions. Along with this, mental peace should also be achieved as Ayurveda also believes in the effect of stress on the pathogenesis of Psoriasis.