<s>[INST] had a root canal done after xrays were taken. there was a sore bump near the next tooth back.  besides on the other side of the mouth on the bottom there was a tooth that was sore when I put pressure on it..  xrays were taken and the problem was there was a puss pocket at the top of the root.  The dds redid a root canal.  That evening at home I put some pressure on the gum near the root canal area and green puss came out.  still a few days later the tooth on the mottom on other side of mouth is tender..could there still be infection I certainly felt he should have done so.  Is there a concern about this situation.  I do want to have a mouth that doesn't hurt. in the mouth?  the DDS did not give me an RX for an antibotic [/INST] Hi,Welcome to Healthcaremagic.com. I had gone through your question I can understand your concern about your teeth. As per your history and symptoms it seems to me you are having apical periodontitis (that means infection blow tooth root) because of that there is pus and tenderness while you put pressure on it. If I would have been your treatment doctor I would have prescribed the antibiotics like Amoxycilin clavulinic acid thrice daily, dosage adjusted as per your weight and anti inflammatory too like Ibuprofen. You must visit a doctor and take medication as prescribed and if you want proper treatment plan upload a n image and write to us back. Hope my answer will help you and you can visit us again if you have any further queries. Regards Dr Muzaffer Hussain Parray. Bachelor of Dental Surgery. </s>