Acute generalized exanthematous pustulosis is an uncommon disorder, characterized by the acute onset of multiple pruritic, small, nonfollicular, sterile, superficial pustules over erythematous and edematous skin. It is frequently caused by medications, mainly antibiotics, and particularly beta-lactams. It is a rare condition that is not well known in infectious disease practice. We report a case of ceftriaxone-induced acute generalized exanthematous pustulosis that presented with the appearance of sepsis. After discontinuation of ceftriaxone, the findings were improved.