Thanks for asking the query,
Pain, swelling, numbness, fever, nausea are common complications after tooth extraction.
Numbness is due to the use of local anesthetic
solution at the time of extraction of tooth,
It will take 4-5 hours for all the sensations to become normal.
If it persists for more then 12 hours you visit to the concerned Dentist
and get the checkup done, take an x-ray of the tooth to see if there are any chances of broken tooth piece left or dry socket
As the infection was deep, you might be having pain, take complete course of antibiotic and analgesic
, follow the post extraction instructions given by the Dentist properly.
Use saline water gargles 3-4 times a day,
Use antiseptic mouthwash gargles twice daily this will promote healing and promote infection.
Avoid habit of smoking, if present as it delays wound healing
Hope this helps out.