Ear inflammation after ear piercing may be caused by the following situations: First, the local disinfection is not thorough before ear piercing, or the sterilization of the instruments used is not up to standard, resulting in infection at a later stage. The earrings worn after ear piercing are not sterilized or the sterilization is not qualified, leading to infection after wearing. Third, the later did not carry out local sterilization or local water and other factors cause infection. Fourth, some patients can be caused by improper diet, such as continuing to smoke, drink, eat seafood and so on. Fifth, late due to the swelling of the earlobe after ear piercing, the ear nail into the soft tissue leading to local infection. If there is an ear infection, you should immediately remove the earrings, clean up the local secretions, thoroughly disinfected, you can take oral amoxicillin and other antibiotics to treat the infection, and it is best not to wear earrings again after infection control.