It is a viral infection, the virus is human herpes virus type 6 and 7, can be transmitted through the respiratory droplets, generally occurring in babies under 2 years old, especially 6 months – 1 year old babies, mostly in the spring and autumn, sudden onset of high fever and fever withdrawal rash is the main clinical characteristics of early childhood emergency rash. Generally speaking, toddler rash is not itchy, it may be too tightly wrapped in sweat after the fever has subsided or the baby wears clothes that are too thick will cause itchiness, to relieve the baby’s discomfort, you can moderately reduce his clothing, wipe the baby’s body with warm water, so that the sweat can be wiped clean to facilitate heat dissipation, relieve the baby’s itchiness, but also to keep the skin clean. Children without itching can be treated without special treatment, and it will subside naturally after 1 to 2 days without flaking or leaving any pigmentation. Children with itchy sensation can use topical application of stove glycolic lotion. Wait for the rash to subside naturally and don’t worry about it. As the baby will sweat a lot after the fever subsides and lose too much water, parents should give the baby more warm water or fresh juice, eat easy-to-digest light liquid food, do not eat cold and irritating food, seafood and eggs, and keep the indoor air fresh, but not blowing directly into the wind to prevent the baby from catching a cold. If your baby’s rash is itchy, prevent your baby from scratching the skin with your hands to prevent skin breakage and infection, and take your baby to the hospital to identify the cause and treat it.