The early stages of fever syndrome can be characterized by profuse sweating, fever, reduced urine output, few tears when crying, and even convulsions. Fever syndrome is mostly seen in small children within 3 months of age because the brain center is not well developed at this age and is easily affected by changes in body temperature due to changes in the surrounding environment. Most of the mild fever syndrome can be significantly improved by opening the package, opening the windows, actively dissipating heat and replenishing water. If the severe fever syndrome can occur hypertonic dehydration, even shock and other symptoms, you need to promptly take your baby to the hospital, fever syndrome is mostly seen in the summer.