Every few months (4 times in
2010 and now the first is 2011) that lower eyelid swells up. It happens within minutes, seems to irritate him a little (he will then rub it) and goes away within a few hours. He doesn't have any known allergies. I'm starting to track his history/diet in the 24 hours leading up to these episodes, but nothing seems to show a pattern. It's always that eye, never the other, so I feel pretty sure it's tied to the bump somehow.