I am one of those people with super-sensitive ears. I can't even wear my gold or silver earrings without them getting crusty and nasty. Ugh! For a couple of hours on a special occasion here and there, I go ahead and suffer for beauty. LOL
But the only earrings I can wear without pain are from Simply Whispers. They are nickel-free and hypoallergenic, and I can wear them without pain. http://www.simplywhispers.com I would take your daughter's earrings out and replace them with some posts from here, and see if that helps, while treating them as others have described.