DS is nearly 5 months and has been itching/rubbing his eyes quite a bit lately. It's not just when he's tired, it can be anytime. I've taken him to the doctor and it's not conjunctivitis and she didn't seem too worried. I'm only worried because it happens a lot and his lower lid swells a bit and looks puffy. Does anyone else's baby do this? Could it be an alergy of some kind?