hello and welcome to health care magic,
I am Dr Sriram nathan an ENT surgeon and I will try to help you out with your problem.
At the offset I would like to understand just how you could rule out that the swelling is not a node? Any physical examination even done by an expert can never exclude any swelling unless it is substantiated by an pathological diagnosis which can be done either by FNAC or by biopsy
and only then can the nature of swelling be confirmed.
I would advice you to take a course of antibiotic like amox-clav for a week in consultation with your doctor and do not go for any chiropractor adjustment for a week and see if the swelling improves.
If the swelling persists then you must consult an ENT surgeon who will try to help you out with the test I mentioned above
hope this helps
Dr Sriram Nathan