<prompt> A patient with psoriasis was staed on systemic steroids. After stopping the treatment, the patient developed generalized pustules all over the body.The cause is most likely to be -Bacterial infectionErythrodermic PsoriasisDrug induced reactionPustular psoriasis  <response>: Patient of psoriasis on withdrawal of systemic steroids leads to: 1Pustular Psoriasis: - Multiple sterile pustules develop on whole bodyincluding palms soles ka sterile as there is no infection, only infiltration present. -If generalised ka Von Zumbusch disease. - Other provocating factors include Infection, Pregnancy and Hypocalcaemia associated with hypoparathyroidism. 2 Erythrodermic psoriasis 90 body surface area shows rednessinflamed or- scaling Systemic steroids are contraindicated in psoriasis as, on withdrawal it causes pustular psoriasis except inpregnancy where they are drug of choice 