I had a tooth pulled 10 days ago. I had an infection in my gums prior and during the extraction. Dentist had a very difficult time removing tooth. Ever since I had the tooth pulled I have been in extreme pain, and there is a knot in the bottom of my jaw right below where the tooth was extracted.  Dentist said no dry socket and no infection.   I can feel swelling in my gums in comparison to my unaffected side.  Knot area is visible too.  What may this be?  Should I get a second opinion?
If the knot that you are feeling in your gums was already there it may take a little more time to subside. Swelling and knot may be a sign of infection only, if you have finished your antibiotic course and have no discomfort or pain you can wait and keep it monitored with your dentist if however you develop pain or if the selling increases you may have to get it re diagnosed with another course of antibiotics.