Ear piercing pus and bleeding is caused by the appearance of infection. If it appears relatively soon after the piercing, it may be an infection caused by the piercing not being done in full accordance with the aseptic operation, which can be treated with oral cefradin capsules or roxithromycin capsules, together with daily disinfection of the surface with iodophor cotton balls, followed by external application of antibiotic ointment. If it appears suddenly only after a long time of ear piercing, it means that it is caused by allergy or acute attack of chronic inflammation stimulation. Allergies can be considered whether the earrings are causing skin allergy symptoms, you can eat some anti-allergy drugs, such as paracetamol, to remove the earrings, and strictly forbid to stimulate the earrings again, at the same time, you can also consider the application of Bactroban ointment topical.