Good morning.  I woke up to some nasal congestion as I have been sick with a cold for over a week.  As my sinuses were clearing I noticed a tender \"pop\" or \"snap\" like feeling.  My upper lip, right side, is now swollen and numb, as if I have received a lidocaine injection for dental work.  Should I be concerened?
Thanks for your query, I have gone through your question. The lip swelling could be secondary to the tooth or, take care. Um infection resulting in pus formation causing cellulitis, or it can be allergic reaction to some Chat Doctor.  The local anesthesia effect will be there for 1 hour after injection during that that time lip will be numb, and you will be feeling like its swollen, but it will not be swollen. Consult an oral physician to rule out these two. If I'm your treating doctor I would have prescribed a course of antibiotics and analgesics along with an antihistamine. I hope my answer will help you