Patients who have their ears pierced, in some cases the ears swell normally and in other cases less normally, as follows: 1. Normal: If the local swelling is only mild and there is no obvious redness or oozing, it is normal. This is because after the ear piercing, the local tissues will be traumatized and will cause tissue edema. 2. Not normal: If there is significant local redness and swelling, or even pain and fluid exudation, it is not normal and often considered to be locally infected. It is necessary to go to the hospital’s surgery or emergency department for disposal as soon as possible, and the doctor will give regular changes of medication and oral antibiotics for treatment if necessary. After swelling, patients need to pay attention to diet, such as not drinking drinks containing alcohol and not eating spicy food, which may further aggravate the swelling, and can consume fresh fruits and green vegetables and appropriate intake of high quality protein, etc., to promote local recovery.