After ear piercing, in order to prevent local inflammation, you can use a disinfectant solution such as iodophor or alcohol for local wiping to achieve disinfection. Iodophor is currently the more commonly used skin surface disinfectant in clinical practice because it is less irritating to the skin. If some patients have signs of infection after ear piercing, in addition to local disinfection with iodophor, they should also use anti-inflammatory ointments such as Bactrim and erythromycin eye ointment, and avoid eating spicy and stimulating foods. If the ear piercing becomes infected, it is also necessary to pay attention to whether the patient has a keloid. If the patient has a keloid, the infection will easily lead to localized scar growths, and in severe cases, surgery will be required later.