My 14 yr old daughter started with jaw pain over a week ago. Pain so bad she cried constantly. Now an abcess showed up on her second to last tooth on the gum. We took her to the dentist who would not touch her mouth until she did a round of amoxil for 10 days. we are on the 3rd day, and the pain has increased and the swelling of the left side of her face is deforming. swelling is now going under her jaw and into the neck. Is the antibotics not working? Would it be of benifit to bring her to the Er? She is in massive pain and can eat nothing. She can barely open her mouth. These two back teeth the dentist has worked on before. any help you can give me would be greatly appreciated.