Hi, your history suggest more of an infection,
The swelling behind the ear is an
abscess, and swelling at jay line may be draining
lymph node.
If i were your treating doctor then i would suggest
1) To clean the infected region with antiseptic lotion, and to remove the snug.
2) To start on antibiotic i.e cefexime along with
antacid for a full course of one week.
3) I would recommend to consult your physician, and to get cleaned the abscess in an strict aseptic condition, and to get prescribed medicines.
While on treatment the swelling on your jawline would eventually regress.
Hope I have answered your question. If you have any further questions I will be happy to help.