### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
I had gone to a dentist and he did a root canal , it was perfert. You could see the whole tooth and the gum was even with all the other teeth . This is my lower gum. A week later I went to have a molar pulled because of a broken bridge work. It was my last molar in the left side lower. The dentist gave me 4 shots, the first 3 were bad enough but when he gave me the fourth one it was in the gum of where I had had a root canal the week earlier. I almost jumped out of the chair. After about a week the tooth that had the root canal, the gum start to swell and I was number thoughout my chin and lower lip . It has been two years now and many time back to the dentist and other dentists. I went back to the original dentist that did it, he s out for 3 months, very elderly, his son gave me an antibotic and it started to go down and feeling started to come back, I took it for 20 days. When I went back to him he said I have Mandibular Torii and it will like this forever. I have a numb lower lip (half) and the swellowing is on the outside and inside of the gum. I had a ultrsound done over a year ago and the neuologist said he could give me medication but I m on too much already and it would probably cause seizures. I said ok and kept going back to my dentists. Now my inside of my mouth, cheek and inside lower lip is swollen and effects me when I eat. I bite my cheek and lower lip. I told the dentist that gave me the antibotic there must be an infection is the antibotic helped. He disagreed. I plan on going to a ears, nose and throat doctor to see what he says. It worries me the lump is getting bigger on the inside of my gum under my tongue. Please help. Thank you. YYYY@YYYY

### output:

Hello, Thanks for posting your query in Chat Doctor forum. The lump under the root canal treated tooth may be due to-localised overdose of local anesthetic solution deposited. Re-infection of root canal treated tooth. A detailed clinical as well x-ray evaluation is required in your case. Tooth has to be either extracted or root canal treated depending on severity of infection. Please do visit a dentist for further reference. Hope this helps.