Wow. It doesn't take much looking around the web to come across a lot of
rather disturbing data on Bactrim DS, as well as for the two component drugs
therein. Product information clearly point out that liver disease is a caution
for the use of Bactrim DS.

http://www.inhousedrugstore.com/infections/bactrim-information-patients.html
http://www.drugs.com/cons/bactrim-ds.html

Beyond that obvious issue, in the UK identical products ("Septra" and
"Septrin") caused such consternation due to side effects and deaths that
prescriptions now barely reach a few thousand annually.

So, obviously, I'm not a doctor, but if I was you, I'd be asking my doctor if
there is a different drug available - one that doesn't carry specific caution
statements for a compromised liver.

Good luck, Brian. And get better soon...

/greyhackles