Low jaw under the ear pain and swelling.

I have ear pain, jaw pain under the ear with swelling for one and a half months. Had sinus infection and got antibiotics. Sinus cleared up. But the jaw pain and swelling still there. So went to ENT and did Endo. No infection in sinus or ear. He was not sure why have swelling in jaw. Told me to take CT scan to see any infection. Not taken yet.  I went to dentist to see if it's dental issue after that.i have upper wisdom tooth and that is hurting the lower gum. Also, guessing there is Minor crack in lower first molar. That could cause pain under the ear. Told me to try wisdom tooth removal first. I did that 3 days back. I still have the same jaw pain, under the ear pain with swelling. I also have pain and tenderness on top of the neck where the jaw ends. It's so tender and little swollen.On side of the neck. Lymph nodes may be. It's so hurting inside the ear, under the ear, in the neck. Whether it's tooth related or ENT? What could be the issue? It's like continuous sore scratching pain.