The rash usually returns to normal in 1~2 days, or lasts for only a few hours. Childhood emergency rash is a viral infection, mainly caused by human herpesvirus types 6 and 7, which manifests itself as a high fever that lasts for 3 to 5 days and then suddenly subsides, followed by a rash that fades when pressed. The rash begins on the neck and trunk, then spreads to the face and extremities. It is usually itch-free and lasts for 1 to 2 days, although some rashes may appear for only a few hours. The rash in toddlers does not require any special treatment. It is a self-limiting disease, and it is important to keep the skin area clean and hygienic during the rash period, and not to scratch too hard. The duration of the rash varies with each child’s health condition, so it is advisable to consult a doctor promptly if there is any abnormality.