Toddler acute rash, is caused by human herpesvirus type 6 infection, mainly in infants and young children, the clinical may appear repeatedly fever, may be accompanied by mild diarrhea, some babies can be palpable on examination of the post-auricular occipital lymph node enlargement, usually the baby’s general condition is good, in the high fever of 3~5 days, the fever subsides and the rash is out, the disease is self-limiting disease, the course of the disease need to be reasonably antipyretic and antipyretic can be. Oseltamivir is an influenza virus neuraminidase inhibitor drug, mainly used for influenza virus infection of influenza children, can not be used to consider the children of early childhood emergency rash, and the safety of the drug for children under 1 year old has not been determined, incorrect use of the drug can occur gastrointestinal symptoms or delirium and other adverse reactions, it is recommended that the use of the doctor’s instructions for proper and rational use. It is recommended that such babies seek medical attention and be guided by a specialist for proper treatment.