When I was about 5 years old my Mom took me to the hair salon to get my ears pierced. They used a gun and didn’t wear gloves. The piercing gun was so awful that it jammed and pulled out the jewelry. So I had to get my left ear done twice.
and this was their golden aftercare advice:
I had the same issue, my ears got super swollen and the back part of the stud wore away at my ear, it took me three hours to loosen them and months for the infection to clear up fully