After the ear piercing, it keeps growing badly, there may be the following reasons: 1. There is local infection in the ear piercing, because the process of ear piercing is not absolutely sterile, so it is inevitable that a slight infection will occur. In some cases, if the patient’s resistance is low or the bacterial infection is more aggressive, the infection may not be very well controlled, and redness, swelling, erosion, ulceration, and pus around the ear piercing may occur repeatedly. If the auricular cartilage is damaged during the ear piercing, the infection may not be well controlled. Clinically, for this condition, patients are advised to go to an otolaryngology clinic to see a professional otolaryngologist for an examination, have the doctor check the local situation, perform local debridement and disinfection treatment, and then change the medication regularly. If necessary, antibiotics can be applied for symptomatic treatment. 2. In the process of wearing earrings after the patient’s ear piercing, it is possible that the patient’s skin has a local allergic reaction to the earring material. In this case, the ear hole will not heal very easily. So if this is the case, it is recommended that the patient can temporarily take off the earrings and wait for the local healing before setting them.