Thank you so much for the response! I'm glad that your lymph node has subside and I hope it will never pop up again. Like you, I too have several blood test, a laryngoscopy, as well as multiple ultrasound to figure out what it was. All of the test comes back clear, but the doctors also don't have explanation of what might cause this swollen lymph nodes.
As for the antibiotics, yes! Last year of 2016, I have take around 8-10 rounds of antibiotics to get rid of my horrible tonsilitis bouts. I have tried to not take antibiotic and just take vitamin + salt water gargle to get rid of my tonsilitis, however it does not work. Thus, whenever I get a tonsilitis, the only way I can cure it is by taking antibiotics. I guess the antibiotic mess up my stomach and gut flora so much that this this LPR started?
Currently, I am taking daily dose of probiotics to try to recover the gut flora balance, but I don't even know if it works because my LPR is still quite bad. One of the doctor also said that my recurrent tonsilitis can also be caused by the regular acid that comes back up and irritate my throat wall and tonsil. Currently, I can see that my throat wall is very red, filled with bumps and have constant white mucus.
I have an endoscopy back in late 2015 and at that time it only stated that I have mild gastrisis. Around October 2016, I came back to my doctor and ask for another endoscopy, however he said that it is not necessary and he prescribed me with 2 month dose of Dexilant 60 mg PPI. Well, it didn't work and after 2 months of dosage finished, I still have this LPR. I have avoided all trigger food and alcohol, but still, I still have the feeling of liquid coming back from my throat up to my mouth after eating or even drinking water.
What scared me is perhaps the lymph node does not hurt at all and it still does not subside after 4 months or perhaps even more because I might not be aware of it when it first pop up (the submandibular gland). The one on the right side of my neck has also been there 2 weeks and it does not subside as well.. However I am also pretty sure that it does not grow..
I hope you can find quick relieve to your LPR, it is not a fun disease to have