After the fight, as long as you don't get infected and touch it, nothing will happen. Don't get wet for 7 days. Apply erythromycin eye ointment and alcohol every day, and don't take off your earrings, or you will die easily.
There is no age limit, because some people, just born when they are young, have been tied up at home by her. there is no age limit.
It's best to go to a disinfection place. Plastic surgery departments in some hospitals can make ear holes.