Drug reaction with eosinophilia and systemic symptoms (DRESS) is a rare and potentially fatal adverse effect characterized by a skin rash with visceral involvement and haematological abnormalities. This adverse drug effect is often misdiagnosed and under-reported especially in paediatric age group due to its rarity and high occurrence of skin rash in various other viral illnesses of children. We report a case of DRESS in a three months old male child. A high index of suspicion, rapid diagnosis and prompt withdrawal can be life-saving for the patient.