Figure 1: A 2-month-old child with psoriasis vaccinalis, presenting with (a) erythematous papules with pustules on the trunk, (b) erythematous, moist, and slightly scaly patches on the gluteal cleft, (c and d) annular erythematous plaques with whitish-yellow scale/crust on the trunk and scalp; purple ink arrow indicates biopsy site on the abdomen