Hi I am fighting sinus related problems for last 7 weeks, i am having pain in sub-mandibular lymph node since yesterday. i had similar pain few weeks ago when i got allergic reaction to antibiotics. My ENT has started me on nasonex for last 3-4 days, could the pain in submandibular lymph node be because of the reaction to nasonex? my lower teeth on that side feel little painful as well, i had dental checkup a month ago, there is no issue with my teeth. what could be the reason for the pain in the lymph node and how do i alleviate it?