Root canal issues are not always dental emergencies, but in some cases the issue cannot wait until a regular appointment. When the pulp within a tooth has become infected, it must be treated promptly. Otherwise, the infection will spread and the pain will worsen.
Swelling and pain can be signs that you need a root canal treatment. Antibiotics are not likely to resolve the problem. Your emergency dentist can perform a root canal procedure that will eliminate the infection and the pain.