After the umbilical cord falls off, in order to prevent infection, you need to keep the navel clean and breathable, disinfect it well, and use medication and other care if necessary. 1. Keep the umbilicus clean and breathable: after the umbilical cord is removed, in order to prevent the growth of anaerobic bacteria and other bacteria, it is necessary to keep the skin clean and pay attention to wear breathable clothing or diapers to prevent infection. 2. Sterilization: After the umbilical cord is detached, not only do you need to keep the skin in the umbilical area clean and breathable, but also pay attention to sterilizing the umbilicus, and wipe the umbilicus with iodine povidone or alcohol every day as prescribed by the doctor to prevent infection. 3. the use of drugs: after the umbilical cord is removed, if the navel part of the blood seepage and other situations, you can follow the doctor’s instructions to use erythromycin ointment and so on coated in the navel, the treatment of infection. It is recommended that parents in the care of the baby’s navel, once found that the baby navel bleeding or even pus and other abnormal symptoms, timely medical perfect relevant examination, standardized treatment. In addition, drugs may cause side effects symptoms, should be used under the guidance of a doctor, do not blindly use drugs.