Posted 2/15/2013 12:11 AM (GMT -5)
The safest are the Macrolides which are the ones ending with -mycin for example erythromycin, roxithromycin, clarythromycin. The worst are the penicillins and the cephalosporins. When i say best and worst that is related to the risk of causing C Diff- which is probably the worst complication of taking an antibiotic especially for a UCer.
Have you considered going to a good accupuncturist for hebal remedies for sinusitis? Also have you tried doing sinus rinses and netti pots? (Make sure to use previously boiled water, not straight tap water, ofcourse wait for it to cool down).