Infectious mononucleosis (IM) caused by Epstein–Barr virus (EBV) is well known to occur in adolescents and is also termed as kissing disease. However, children in developing countries acquire the infection in first few years of life, and universal seroconversion is seen by ages 3–4 years. Transmission in this age group is through saliva from seropositive adults on fingers or toys. Recognition of disease is important as potentially life-threatening complications occur. Awareness of the disease occurrence in this age group also avoids antibiotic use for pharyngitis that mimics streptococcal sore throat. The presence of rash intrinsic to the disease along with other clinical features may give a clue to the diagnosis. Data from India on IM in children is scarce, perhaps due to lack of awareness or availability of diagnostic tests. We present a case in a preschooler who presented with fever, pharyngitis, lymphadenopathy, and rash without any prior antibiotic use and was managed on supportive therapy.