Pediatric acute rash is usually caused by viral infections, which can lead to fever and high temperature lasting 3-4 days, after which a rash will appear, which can usually go away in about 3 days, but the time to go away varies among children with different body types. When pediatric emergency rash breaks out, it can appear in several places all over the body, usually starting from the root of the back of the ear, and then reaching the neck, face, and finally distributing to the trunk, limbs and so on. In general, the emergency rash in young children does not require special treatment. If the child is in good health, the rash will go away relatively quickly, usually within 24 hours. If the child’s health is poor, especially if the viral infection is more serious, the time for the rash to subside can be prolonged for about 1-2 days. At present, there is no specific treatment for this disease, usually symptomatic treatment, close observation, drink plenty of water, pay attention to the child’s temperature, usually faster recovery.