question: My 6 yr old daughter has been complaining of upper lip pain. This morning when she woke up her upper lip and the area b/t her lip and nose are swollen and painful.  I took her to the dentist today, b/c she has an upper front tooth that was knocked out by her friend about 5 months ago, and apparently the tooth broke off and the root is still in there.  The pain in the lip all started last night though while she was trying to eat corn on the cob, so I just assumed it was all related and that maybe there was an infection.  The dentist looked and she has an appt next week to have the roots removed, but he said there is no infection and didn't prescribe any antibiotics.  She is still complaining of pain and the area is still swollen.  I think she may even have a low-grade fever. My question is, if there is no infection, why is it swollen and painful. Should she see her pediatrician?