Rashes are common in children with fever. Some occur before, some after and some during the fever and their clinical significance varies. If the rash develops after the fever has subsided after 3-4 days, it may be a toddler rash. In this case, there is no need to be too nervous, so let the child rest, keep the skin clean and hygienic, and wipe the sweat stains off the child frequently to avoid catching a cold. If the rash is accompanied by a high fever, you should be on high alert for infectious diseases and seek medical attention as soon as possible. If the body temperature is too high, physical cooling is needed.