Water in the navel, very smelly, indicating the occurrence of navel infection, is the emergence of umbilical infection, the need for oral antibiotic treatment, such as cefixime, cefaclor, etc.. The navel should be surgically cleansed, repeatedly rinse the navel with hydrogen peroxide to kill the bacteria in the navel, continue to rinse the navel with saline and then carefully observe, if there is a foreign body in the navel, such as something dirty, use tweezers or use cotton swabs to clean out the dirty things, while repeatedly disinfected with iodine volts, observe the inflammation of the navel. If there is an abscess, the abscess needs to be cut open and filled with gauze, and the wound continues to be changed. If there is no abscess in the navel, but only the surface of the navel is red, you need to change the medication at least 2 times a day on it.