My 2 year old child has had puffiness, swelling under his eyes for the last week. I have taken him to the doctor twice and they are a bit befuddled by it. They have tested his urine twice for proteins and sugars and it was negative both times. They have sent his urine out to the lab for futher testing, the results have not yet returned. It does not appear to be an allergy or pinkeye as his eyes are not red, runny, have no discharge and do not appear to be bothering him in any way. They gave him an eye exam everything appears normal, all structures and parts of the eye and eye muscles functioning properly. His ears are clear and his sinuses look fine. The swelling seems better at times, worse others, but does not seem to be connected to anything. We have not changed anything in his routine, no new soaps, detergents, foods, etc. I was hoping you might be able to suggest something to check that his doctors haven't already thought of, any help would be much appreciated.
Thanks in advance.

B