Newly-produced skin cells normally mature over a period of three to four weeks while travelling to the skin’s surface to be shed (The Psoriasis Association). However, in skin affected by psoriasis, this process is accelerated and new skin cells reach the surface within 2–6 days (The Psoriasis Association). The rapidly-matured new cells mix with the old cells on the skin surface resulting in raised, inflamed, scaly, red skin lesions, known as plaques, which can often be inflamed, itchy and painful and can crack and bleed. Finally, cause pain, discomfort and sever itching. In severe cases it can even crack and bleed. It commonly confined to some body parts such as scalp, knee, elbows, lower back, hands and feet. Sometimes it can even spread to other parts such as genital areas, finger nails and under the toes.
Psoriasis affects both sexes and all races. It can occur at any age, although it most frequently starts in young adults. Once a person develops psoriasis, it usually continues throughout their life, although it may get better or worse and even disappear for periods of time (Australasian College of Dermatologists).
Causative factors: Mentioned in Ayurvedic Medicine
The causative factors that are mentioned in Ayurveda are, consuming incompatible foods; incompatibility exists in the combination of the ingredients as well as seasonal incompatibility, food versus season. Regular consumption “Guru” food, food that take longer time to digest, eating non – vegetarian and spicy food will trigger the doshas and manifest as “Kitibha”. In Ayurveda along with above reasons it is also mentioned about the congenital reasons and sinful actions during part life or present life are also the possible causative factors.