A week is best. I consulted my classmates who studied medicine at that time. Let the wound heal itself within a week, and you can often wipe the surrounding area with alcohol. In addition, applying erythromycin ointment to the ear hole and turning the ear nail can reduce inflammation and promote healing.

Don't get wet for a week. After a week, change to something you bought, preferably pure silver and silver disinfection. Don't buy it in small shops, many of them are impure, but in jewelry stores, tremella nail is very cheap ~