<s>[INST] I have tenderness from the inside of my chin to the corner of my mouth. I have four missing teeth on the lower same side as the pain.I have the sensation that my lip is swollen and have fairly steady pain in my lower middle ten teeth. I have the sensation of an increased amount of saliva and my tounge being swollen.I can feel a lump that I ve been told is the nerve that also feels swollen and it hurts when touched. The underside of my tounge burns almost all the time and this is on the left side of my face right beside my chin. I have had this for over a year and it began after I had a root canal on one of my lower front teeth. [/INST] Hello and welcome to Chat Doctor forum, Thank you for providing all the details about your last dental visit. From the dental history provided by you, I assume that the numbness and a feeling of swollen tongue is from a nerve injury which usually takes about 6 months to a yr to recover. A mild injury to the nerve occurs when the nerve to be anesthetized lies quite close to the tooth being treated. I will advise you to see a specialist(oral surgeon) for the same. Recovery is slow but complete, so you need not worry and kindly see the oral surgeon soon. I hope this answer was useful wish you good healthcare care. </s>