I was prescribed sulfamethoxazole-TMP as a second round of antibi...

I was prescribed sulfamethoxazole-TMP as a second round of antibiotics to kill off a persistent sinus infection. For the first couple of days I felt fine, but then by the 3rd day out of 10 I had a persistent headache in the evenings. This lasted two days and then went away. Then on the 8th day I woke up with a rash all over my body of small red bumps, which looked like tiny mosquito bites. They don't itch, but I can definitely feel them rubbing up against my clothing. I had some red wine last night, so the extra sulfur in my body might have pushed me over the edge... Also, I feel light-headed and tired. I called the advice nurse and she said just to drink a lot of fluids to flush it out of my body and to take another round of the antibiotic to see if it gets worse! No way, lady! I think I'll stay away from it, thank you very much. My sinus infection is gone enough. I have never had a reaction to any medications before, so this really surprised me.