pain after crown lengthening

I had a crown lengthening procedure 3 weeks ago.  I was fine until 3 days ago when I developed pain and swelling in my lower jaw.  The procedure was done to my upper teeth.  I saw the dentist that next day and he took xrays and said that the tooth was healing well but my lymph node was swollen.  He put me on cipro.  I took it for 24 hours and woke up today with increased pain which now hurts when I open my mouth or smile and extends now to my upper cheek bone.  I had chills last night and a rapid heart rate but wasn't sure if it was from the antibiotic since I also feel nauseous.  I called the dentist today and he is changing my antibiotic to clindamycin.  Is there something more severe going on?  The pain is not relieved by tylenol any longer.  

[Killerpain]

Look up Trigeminal Neuralgia on the internet.  Does the picture you see there describe the area of pain?  

It may be a nerve problem.  Use moist heat for relief and visit your medical doctor to discuss is what my advice is. You may need a different treatment than Tylenol or advil.