SMZ-TMP DS and kidney infection

I have been on SMZ-TMP for a UTI for about 9 days and I ended up in the emergency room last night for severe rash, and fever of 102. I have had the most horrible back pain, leg pain, cramping, joint pain, muscle weakness and migraine since I started taking it. I thought most of that was due to the UTI/kidney infection and didn't realize that I am allergic to it. I stopped taking it 24 hours ago, and while I still have a slight rash, headache, slight fever and body aches I feel a helluva lot better than I have in over a month. People need to be aware that the sulfur in this drug can cause serious problems.

I took Smz-tmp for kidney infection. Took at regular & prescribed times. My infection is worse. Gave me nausea & now lower back pain.

I was prescribed smz tmp for a minor kidney infection. I took the drug for 5 days and stopped because my side (the skin) began to itch and it felt like a severe burning on my skin - like sunburn.
It has been 6 days since I last took the medication. I know that it can take a couple of weeks for it to get out of my system, but is there anything I can take to alleviate these side effects?