Rash after fever reduction and crying at night is most often seen in toddler emergency rash, and it is recommended to consult a medical professional for appropriate management. The main etiology of early childhood emergency rash is the human herpes virus type 6, asymptomatic adult patients are the source of infection of the disease, transmitted by respiratory droplets. Clinical manifestations 1, fever: sudden onset of high fever, body temperature up to 39-40 ℃, accompanied by lack of appetite or mild abdominal discomfort, a few children may appear nausea, vomiting, diarrhea and hematuria, or the appearance of the pharynx, tonsil congestion, lymph nodes mildly enlarged; 2, rash: fever 3-5 days later, the body temperature suddenly dropped, when the fever subsided or later rash, the rash is red scattered macules, about 2-5 mm, pressure of The rash is red, scattered papules, about 2-5 mm, and fades when pressed. The rash usually starts on the face, neck and trunk and spreads to the proximal extremities, accompanied by itching. 1-2 days later the rash subsides and usually leaves no trace. Some children may have erythema of the palate, the rash can fade on its own and no special treatment is needed. The rash may fade on its own and requires no special treatment. 1. Improve the child’s diet, do not eat spicy and stimulating foods, and take appropriate supplements of vitamin C and vitamin B, such as grapefruit and kiwi; 2. Keep the skin clean and hygienic, change clothes regularly, wipe the body with a wet towel, and avoid bathing; 3. Avoid scratching the skin during the rash to avoid infection, and disinfect the skin with iodophor or alcohol; 4. Avoid high body temperature and sweating; 5. Precautions This disease is mostly seen in children from 6 to 18 months, and is rare after the age of 3. The disease is more frequent in spring and autumn rainy seasons, so if there are children at home in the high incidence age, attention should be paid to prevention.