Left bottom tooth which broke in half about 2 years ago has  been aching, quite painful. A few hours ago noticed that bottom left lip kinda numb like I had Novocaine injected. Now my chin below the left bottom lip feels like that. Has that anything to do with the tooth?
Thanks for using Chat Doctor. Read your query. The abscess may cause the numbness specially if the root of the tooth is near the opening in the bone through which the nerve passes. That is the reason you may feel the reduced feeling and paresthesia. I would advise you to visit your dentist and get the radiograph done followed by the root canal treatment. For the pain you can take an ibuprofen (if you are not allergic to any medicine). A course of antibiotics like amoxicillin may be required on prescription. Do salt water gargling. Hope this was useful. Thanks and regards.