Diagnosed with URI and sinusitis. Been sick a month! Bactrim (sulfamethoxazole and trimethoprim) not working. Congestion, runny nose, extreme fatigue, blurred vision. Please help!

Be seen. You need to see your physician for an exam and definitive diagnosis. It could be many things, including a viral infection. That would account for the fact that Bactrim (sulfamethoxazole and trimethoprim) did not work, though that is not a particularly good antibiotic for URIs.