Hi! Good morning. I am Dr Shareef answering your query.
From the history, this looks like a
lymph node swelling. For a confirmation, I would advise you to get it clinically assessed by your family physician/ENT specialist/ surgeon, who might also do a detailed examination of your oral cavity, ear, and head and neck region for any pathology over there apart from the routine tests like a CBC, and
ESR. If nothing is conclusive even after a course of a broad spectrum antibiotic and an anti inflammtory drug, the examining doctor might advise you to go for an FNAC (fine needle aspiration cytology) to know the most probable reason or origin for the lymph node swelling, or any other swelling posing as the lump. They might also go for an
X ray chest if need be.
I hope this information would help you in discussing with your family physician/treating doctor in further management of your problem. Please do not hesitate to ask in case of any further doubts.
Thanks for choosing health care magic to clear doubts on your health problems. I wish you an early recovery. Dr Shareef.