The first step is to reduce the fever according to the specific value of the body temperature. If the body temperature is above 38.5℃, take ibuprofen suspension or compound zinc boo granules. After the body temperature returns to normal, the baby should be given probiotics or gastrointestinal motility drugs to promote the peristalsis of the gastrointestinal function so that the stool is discharged. If the stool does not come out in the anus, you can squeeze it into the anus with a corked solution to relieve the stool. The baby’s inability to poop is related to the fever, the fever will reduce the body water will lead to dry stool, if there are obvious pathogens infection also need to be combined with antibiotics to treat, commonly used cefixime granules and azithromycin granules.