In general, red spots on infants with fever are mainly caused by various viral infections. For example, infants with rubella virus often have fever, nasal congestion, runny nose, and often swollen lymph nodes behind the ears and in the occipital area. Blood tests for newborns often indicate a viral infection, meaning that the blood count is often low or declining, with a predominantly lymphocytic ratio. In the case of rubella in infants, parents only need to care for the baby and give fever-reducing medication when the fever is high. Also, if an infant has toddler rash, it can cause a rash after a fever. The characteristic feature of E.E.R. is that the infant has a persistent high fever for 3-4 days, often with a temperature between 39-40°C. The infant’s mental state is very good and improves significantly after the fever subsides and the rash comes out all over the body.