Pediatric acute rash is a common febrile rash disease seen in infants and young children, mostly occurring between six months to one and a half years old. Its main symptom is a fever for three days followed by a rash as the fever subsides. Before the rash appears, it is not known to be pediatric acute rash. The treatment mainly involves symptomatic management, as it is caused by a viral infection, so some antiviral medications can be taken. Symptomatic treatment primarily involves reducing fever. The principle for fever reduction is that if the body temperature exceeds 38.5 degrees Celsius, give the child fever-reducing medication, such as ibuprofen suspension; below 38.5, physical cooling methods are sufficient. Once the fever has lasted three days and the rash appears confirming pediatric acute rash, all medications can be discontinued. The child should drink plenty of water and rest. Generally, the rash will fully develop within about 24 hours, and then naturally subside over the following three to five days.