I had stomach flu, got bactrim (sulfamethoxazole and trimethoprim). Now throat ulcers I can't eat, or drink, doctors in the morning, anything that helps with the pain other than saltwate?

Stop bactrim (sulfamethoxazole and trimethoprim) Bactrim (sulfamethoxazole and trimethoprim) is not indicated for the treatment of viral infections like intestinal flu. You may have a reaction to the Bactrim (sulfamethoxazole and trimethoprim) or now have a viral throat infection. Stop bactrim, (sulfamethoxazole and trimethoprim) gargle and try anesthetic throat lozenges. See your physician if symptoms persist or worsen.