“…Psoriasis is a chronic immune-mediated inflammatory dermatoses of the skin, and usually consist of recurrent indolent red, scaly, sharply demarcated, indurated plaques or patches, which present particularly over the extensor surfaces of knee and elbow, trunk, and scalp. Plaque psoriasis (PP) is the most common type of psoriasis, accounting for approximately 85% of all cases, and it affects about 2.5% of the population in Western countries [ 1 , 2 , 3 , 4 , 5 ].…”