Pierced Ear Has a Ball Forming Behind Ear

To me it sounds like it's forming into a keloid scar. I had the same problem when I first got my ears pierced at 12 years old. Some people are more prone to keloid scarring than others. Google "keloid" and see if that's what it looks like. You can get it injected with cortizone, which is what I did, and it will shrink. But if she prone to keloid scars, it will be something she'll have to deal with. I had my appendix out and that scar keloided as well.

i get those around my own pierced ears a lot, my ears are sensitive. usually it goes away it a week or so, i just try to keep it clean & i always use, sterling silver earrings or 14k gold. if it gets bigger, or changes color i would definately make an appt. but it is probably just irritated & will go down on its own.

My then 9 month old had the same thing, and you are right, it is sort of like a pimple. As the others have said, keep it cleaned and keep the earring in. Make sure the earrings are cleaned as well.

This happens to me. I have a nose piercing and an ear piercing. Take a q-tip and put peroxide on it. Rub it around the infection. It will go away in a couple of days. Don't leave it untreated! Don't take the piercing out either. This can let the bump close up and leave a scar. The peroxide will not burn or anything.