Infantile emergency rash, also known as infantile rose rash, is a common viral rash disease in infants and toddlers, mostly seen in infants and toddlers aged 6 months to 1 year. The disease is characterized by a sudden onset of fever, and the rash emerges when the fever subsides. The child often has a sudden high fever, the temperature rises rapidly to 39℃, some can be as high as 40℃, and the fever lasts for 3 to 5 days, appetite is not affected, there are few symptoms such as runny nose and cough when the fever is high, or there are only mild symptoms. The fever lasts for 3 to 5 days and then the body temperature suddenly drops to normal. While the body temperature drops, red papules appear on the face and trunk without itching, which gradually fade away after 3 to 4 days and do not leave pigmentation. In some children, characteristic erythema may appear on the soft palate. Some children may also have eyelid edema, bulging fontanelle, cough, diarrhea, and convulsions. Some children may have palpable enlargement of the cervical lymph nodes. The disease is self-limiting and antibiotics are ineffective. Proper care is more important than medication. Drink plenty of water, pay attention to rest, actively physical cooling, you can take symptomatic antipyretic drugs to prevent your baby from having high fever convulsions.