The only definitive indication of systemic steroids in psoriasis-: (A) Pustular psoriasis, (B) Impetigo herpetiformis, (C) Psoriatic ahropathy, (D) Erythroderma
Answer is B. Only indication for use of systemic steroids is generalized pustular psoriasis in pregnancy ( impetigo herpetiformis). IADVL textbook of dermatology page 1049