Lower jaw pain with swelling. Else?

I have lower jaw pain under the ear with some swelling for one and a half months. Had sinus infection and got antibiotics in the end of may month. Sinus cleared up, but the jaw pain and swelling still there. It's under the ear where jaw ends. It hurts to touch and it's very tender. Pain when I touch. Hurts to open my mouth wider. The pain now radiates to the neck. Top of the neck that side. It's little tender and swollen. Feel very sore. The top of the neck under the ear is very tender and painful. Is it because of upper wisdom tooth or sinus issue or TMJ issue? Or anything else? I don't have lower wisdom tooth. Removed it few years back. What's the reason for pain while touching it. Hurts to touch under the ear.(at the end of the jaw). It's sore and scratching like pain. Taken ibuprofen and it doesn't help with pain and swelling. Please help.