Thanks for posting the query,
Tenderness and swelling in the jaw is due to fracture
in the jaw . I would like to tell you that wisdom tooth extraction is not a simple procedure it is somewhat complicated surgical procedure foolowed by many postoperative complications , it is traumatic and time consuming.
I would suggest you to take an OPG x-ray , this will show status of the fractured bone , look for mobility in the jaw , any disturbed occlusion .
I suppose that you have to get your jaw immobilised for some days , discuss this with your dentist
Take complete rest , eat semisolid diet.
Take complete course of antibiotics and analgesic
, use saline water gargles , use antiseptic mouthwash gargles twice daily.
Hope this helps out.