B had a dentist appointment on Wednesday. While his lip was numb he chewed on it, bad. I've never had this happen with one of my kids but now I know to be careful with B. His lip got huge and infected. I took him to the doctor Friday and he got oral antibiotics. It's responding well to the saline washes and antibiotics. It's almost back to normal size but still has a big yellow area and scab. Poor boy.