How worried should i be about swollen cervical lymph? took zpac for sinus, still swollen, on day 4 of bactrim (sulfamethoxazole and trimethoprim). neck itchy 3 weeks prior, related? ty

Wait and see: Sounds like you recently took a lot of antibiotics. After Azithromycin and bactrim, (sulfamethoxazole and trimethoprim) you do not need any more. Commonly with a sinus infection, post nasal drip can cause a scratchy throat. Swollen lymph nodes are a nonspecific symptom which can indicate infection, inflammation or malignacy. Your symptoms should improve within 1-2 weeks. If not a return visit to your doctor is indicated.