Generally, a toddler’s basal body temperature around 38°C is considered low fever, and over 39°C is considered high fever. When a toddler encounters a fever, parents should first not panic and take the toddler’s temperature to see if it is a low or high fever. If the child has a low fever, consider physical cooling as the primary treatment. You can reduce your child’s clothing slightly and try to ventilate your child. If the ambient temperature is too high, or if the child is emotionally disturbed, the child may have a transient hypothermia, and physical cooling is all that is needed. However, if your child’s fever is not good, you need to go to the hospital promptly. If your child has a high fever, you need to pay close attention to the parents. It is very rare for young children to have a fever, and once they do, it is likely to be an infection or an inflammation of the body, so it is important to go to a regular children’s hospital in a timely manner. The body of a young child is not yet fully developed, so parents should be patient and careful when taking their children, and should not be too careless. If the fever is pathological it can have a great impact on the body of the toddler, so it is important to take care of the infant and toddler at home.