Ear piercing actually depends on everyone's different situation. If you go to the place where you puncture, you can basically see that they have disinfection tools and good hygiene measures. Try not to wash your hair for the next three days. It will swell for a week after washing, but don't worry, I thought mine was going to rot, but it will be fine in a week. Don't let the wound get wet. Playing on the eardrum is similar to playing on the skin of the ear. Because it's cartilage, one of my classmates hit 12 at a time, but it will hurt and swell for a long time. I suggest going to places that sell jewelry, such as Old Phoenix. Very reliable. After playing, buy a pair of silver, gold or platinum, which you usually bring, so it is not easy to get inflamed. You want to bring something else to change, but remember to change it back, otherwise it will be easy to get inflamed. If you are not at ease, go to a plastic surgery hospital. This is the most sanitary place there. It won't be too exaggerated, but it will be expensive.
As for maintenance, remember, don't make the back of the chair too tight when wearing earrings, otherwise it will be easy to get inflamed and acne.
Finally, I found that you touched too much and the bacteria went in. Don't touch it, get some mercuric chloride or take some anti-inflammatory drugs, and don't eat too much!
Never retype it, it will only make it more swollen.