If you have continued pain, soreness, fever, and swelling, it is possibly a sign of your tooth infection spreading. In addition, there are several other ways the infection could spread, and you may not even know it. Even as a dentist, it is difficult to look at you and say whether you have an infection or not unless we do some special x-rays. If there’s any indication that your infection is spreading we strongly recommend that you visit your emergency dentist.