Been to dentist in agony with my front tooth, i have an infection on front tooth have to have a root canal they have give me amoxicillin not helping?

Infection: if it leaked to the bone, condition will take more time to heal even after root canal. It is good that you are already taking an antibiotic. It will help heal the surrounding tissues of the root. If the nerve inside the tooth is already irreversibly sick or dead, the tooth needs root canal if it's still restorable.

See a dentist ASAP: If you rely on antibiotics or other not a definitive treatment, the infection will come back. Dentist will treat a tooth abscess by treating the cause and getting rid of the infection. Do not delay. See your dentist ASAP. Good luck.