Emergency rash is a common disease that occurs in infants and young children, characterized by high fever and rash, mostly in spring and autumn, with no gender differences. The rash gradually subsides after 3 to 5 days of high fever and the rash lasts 3 to 4 days. After the rash appears, the child’s emergency rash enters the late stage. Since the rash is not obviously itchy, no special treatment is usually needed, and proper care can be given. Infants should rest quietly, avoid strenuous activities, and keep the air in the room well ventilated. Drink plenty of water or juice rich in vitamin C to replenish the lost water. Wipe off the sweat after the baby sweats to avoid catching a cold and keep the skin clean and hygienic. Avoid cold, spicy, greasy, fishy and other irritating foods. Although the rash does not require special treatment, proper care is essential, and parents must be careful to observe and patiently care for their babies to help them safely get through the rash period.