Thanks for asking the query,
Pain and swelling are common after surgical extractions, you dont worry about the symptoms as they will subside after sometimes.
The swelling will subside in a period of 10-15 days.
Take a course of antibiotics and analgesice consulting your Dentist
At home take lukewarm saline and antiseptic mouthwash rinses.
Maintain a good oral hygiene
Hope this helps out,