<prompt> Most common type of psoriasis -plaque psoriasisSebo PsoriasisFlexural psoriasisPenile psoriasis  <response>: most common type of psoriasis is chronic plaque psoriasis seen in 90 of patients. most common type of psoriasis in children guttate psoriasis most severe type of psoriasis- generalised pustular psoriasis Von Zumbusch type IADVL textbook of dermatology page 1032 