If the patient’s earlobe becomes red and swollen, the following aspects should be considered: 1. Patients may have swollen and congested earlobes for a short period of time after having their ears pierced, and sometimes they may even experience pain, so it is recommended that patients should be routinely disinfected with iodophor every day, and if necessary, anti-inflammatory ointment should be applied to the surface to prevent infection. 2. It is recommended that the patient apply mosquito bite cream, which is especially likely to occur in summer. 3. Consider that the infection is caused by the patient often rubbing the earlobe with his hands, which is especially likely to induce infection in the patient over time, as the patient does not pay attention to the hygiene of his hands.