This situation is considered to be caused by a belly button infection, which leads to a smelly belly button with discharge. The main causes of the belly button include the following: 1. Consider accidentally getting dirty water into the belly button when bathing, causing umbilicus. 2. Consider the formation of umbilicus infection due to the usual inattentiveness, often scratching the belly button with your hands, resulting in belly button odor and secretions. The actual fact is that you will be able to get a lot more than just a couple of days to get a lot more than just a couple of days. It is necessary to take antibacterial drugs, including cephalosporin antibiotics, etc. It should be noted that alcohol cannot be consumed during the period of taking cephalosporin antibacterial drugs to avoid disulfiram-like reactions. Pay attention to a light diet and do not eat spicy and stimulating food, etc.