I was prescribed a sulfameth drug for a severe UTI which entailed...

I was prescribed a sulfameth drug for a severe UTI which entailed terrible abdominal pain & blood in urine. I took it for 2 days and started feeling better. The third day, I was hit with a severe allergic reaction, which after reading some of the side effects, I realize now that i should have gone to the er or called 911. It started with a terrible headache, then vomiting. That night my fever shot up to 104 degrees!!! But, I was freezing. I was shaking uncontrollably, confused, joints aching, you name it. I thought I may have had a migrane and ended up falling asleep and never took any of the medicine on day three. On day four, I woke up feeling MUCH better, and noticed red blotches all over my hands. The second I saw this, I knew it was an allergic reaction. I went and showed the pharmacist and told him about what had happened, and he said, yes, it seemed that way to him too. He said to call my doctor and let them know I had a reaction. When I did that, all they said was they would put it in my chart. I was not even offered an alternative to it considering I still probly had a UTI. I think they did this because now that I have researched it quite a bit, I have learned that people who are allergic to penicillin are more likely to experience a reaction to sulfa drugs. And, yes...I am, and have always been extremely allergic to penicillin. I believe this was overlooked when I was prescribed with the sulfameth.