Hi,
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 process.
Hope this helps out.
Regards...