I got my infected tooth pulled but the swelling in my cheek is still not going away. what's wrong?

Need Consultation: Could be: 1) need antibiotics and/or drainage. 2) warm moist compresses on your cheek. 3) muscle spasm. Ask your dentist.

Infection.: There could be an infection remaining. One type, cellulitis, can be serious. I would highly recommend an evaluation by the surgeon/dentist and most likely antibiotic therapy. Other causes are inflammation from the procedure or injection, a hematoma from the injection or bleeding, etc. The best thing to do is get back in to be seen, asap.