Hi, welcome to our site. I am Dr Saumya Mittal. Read your query. That is a very significant question and i appreciate your problem. I will try my best to answer your query lymph node enlargement is possibly due to infection. since it is throat that is involved, it is likely that there is a chronic sinusitis or throat infection i would suggest a complete hemogram and x ray pns waters view for the same i would also suggest usg/mri abdomen and ct chest to make sure there are no other enlarged lymphnodes, in which case a biopsy from the lymph nodes may be essential i would suggest you take the tests one at a time meanwhile start steam inhalation I hope this helps you. Inform the reports mentioned above so i can be of help further. Best of luck. I have given you the answer to the maximum considering the information provided. The results of the tests could further enhance my answer to you. Please do understand that some details could be extracted from a detailed history and examination. Looking forward to your return query with the details asked so that I can help you further. (If the answer has helped you, please indicate this)