<prompt> Which of the following is most serious type of psoriasis is -Chronic plaque psoriasisGeneralized pustular psoriasisGuttate psoriasisFlexural psoriasis  <response>: Ans is b i.e. Generalized pustular psoriasis o Erytherodermic and generalized pustular psoriasis Von Zumbusch type are can become dermatological emergencies. They are the most severe forms.o Chronic plaque psoriasis is the most common form 80. 