i had a root canal treatment done and crown treatment in the last 3 months since then i have another apsus on the tooth beside it the dentist gave me pencillen which didnt clear it up he told me its possible another root canal  is it coming from the first treatment or what can i do
Hi.... I would suggest you to have x-ray of suspected tooth. By this only your doubt will be clear. If abscess is with act treated tooth only then you need to undergo re root canal treatment. And if abscess is with other next tooth then that tooth need root canal treatment. Without finding cause and taking antibiotics is not advisable. So do professional investigation then have treatment. Take care