My 13-year-old son has severe facial swelling , with redness. He has no pain, no itching, no obvious swelling of lymph nodes or salivary glands, no irritation or discharge of the eyes or sinuses. He first showed what appeared to be a rash on Thursday morning, on his right cheek, just under his right eye, and on his nose, with slight swelling and lesser involvement on the left side. The rash was undifferentiated - no spots, no rings, no raised lumps . The one oddity was a small patch of crusty, lighter-colored skin high on the right cheek, which has since gone away. Basically, he looked like he d been hit in the face with a volleyball. By Friday morning, the swelling was so severe on the right side that he could barely open that eye, though it eased up a bit after he d been upright for a few hours. We took him to the doctor, who gave him prednisone and hydroxizine, but really had no idea what was causing it. She suggested poison ivy, which seemed absurd to me, since he has no itching or pain, and the rash wasn t spotty or lumpy. Today, the rash is a little abated, but the swelling is not. Still no pain and no itching.