Pus in the ear after ear piercing is considered to be an infection of the local wound, and the pathogenic bacteria is mostly Staphylococcus aureus. If the pus is small, it can be treated at home by squeezing out the pus and disinfecting the area with iodophor or alcohol repeatedly, and it will heal in about 3 days. If an abscess is formed, the abscess needs to be treated surgically in the hospital by incising and draining the abscess and repeated local flushing with metronidazole injection twice a day and placing drainage strips. The patient also needs to take oral anti-inflammatory drugs such as amoxicillin, penicillin V potassium tablets, cefixime, or if cephalosporin is allergic, oral roxithromycin, azithromycin, erythromycin, etc. The area needs to be repeatedly wiped with alcohol and iodine volts to disinfect the area, and it will heal in about a week. During the treatment period, patients should not wear earrings, eat spicy and stimulating food, squeeze the ears, and pay more attention to rest.