A couple of months ago, we noticed a small lump under Aerin's left lower eyelid. (You can kinda see it in the first picture from this post about summer camp.) It wasn't painful and it didn't seem to bother her, so we took the "wait and see" approach. But over the weeks, the lump grew larger and redder. We took Aerin to the pediatrician who suspected the lump to be a sty and — because it hadn't gone away on its own — prescribed an antibacterial ointment. In addition to the ointment, we were to give her warm compresses, and hopefully the sty would go away on its own. When Aerin's eye didn't get any better after 10 days, we visited the pediatrician's...