Dry and smelly navel may be due to insufficient cleanliness of the umbilicus leading to accumulation of dirt or bacterial infection leading to inflammation. Depending on the cause of the disease, the main treatments are local sterilization, oral medication, and surgical treatment. 1. Local sterilization: suitable for patients with insufficient umbilical cleanliness. Due to insufficient cleansing of the umbilicus on weekdays, bacteria remain in the umbilical fossa, and the mixture of shed keratinocytes, residual microorganisms and sweat will easily give rise to foul odor, which can be treated by applying iodine povidone or hydrogen peroxide, etc. to the umbilicus. In addition, pay attention to personal hygiene, and avoid scratching the umbilicus with hands before the umbilicus recovers, so as not to cause the spread of inflammation. 2. Local medication: If the navel stinks, accompanied by redness, swelling, itching and other symptoms are due to inflammation and infection, you need to do the appropriate examination and then give antibiotic treatment, such as levofloxacin, but also can be used externally with some of the anti-inflammatory and antiseptic ointment coated in the affected area, to prevent the expansion of the secondary infectious symptoms to achieve the role of antiseptic, anti-inflammatory. For example, erythromycin ointment. 3. Surgical treatment: it is suitable for those who have abscess in the umbilicus and have inflammation in the whole body anyway, such as chills and high fever, which indicates that the bacteria have entered the bloodstream. Should be timely in the umbilical incision to drain the pus, do bacterial culture, and intravenous infusion of sensitive antibacterial drugs to reduce bacteremia, such as metronidazole, in addition to postoperative attention to the incision site of the regular change of medicine. It is recommended that patients with dry and smelly navel should be treated under the guidance of a professional doctor, usually pay attention to keep the umbilicus clean, and patients with systemic inflammatory reaction should be treated with timely antibacterial therapy.