Hi..
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concerns..
As per your complain if you have an infected tooth that is causing pain and discomfort then
numbness of the lip and chin can occur due to formation of
dental abscess and when the pus puts pressure over the nerves passing through that area there will be numbness of the area supplied by the nerves.
This seems to be the most probable cause of numbness of lip and chin along with having an infected tooth..
You should consult an Oral Physician and get evaluated so that the exact cause can be ruled out and treatment can be done accordingly..
For infected tooth you can be advised to get an
x ray done and in case if tooth can be saved
root canal treatment of the tooth can be done followed by antibiotics and painkillers..
In case if tooth cannot be saved extraction is advisable..
Hope this information helps..
Thanks and regards.
Dr.Honey Nandwani Arora.