Posted 10/14/2019 12:14 AM (GMT -7)
Zithro and septra seem to work well for me, but you should avoid them if you have sulphur sensitivity (I don't). I avoid the fluoroquinolones like the plague because of the black box warning. Doxy is not too bad in the grand scheme. Erythro gives me hives and bad diarrhea. The -mycins in general are iffy with me.
Unfortunately it's hard to predict if an antibiotic will trigger your UC or not because a lot of factors are involved. I've taken abx sometimes and been ok, while other times have triggered flares... and honestly I can't tell what was different between those times.
There are abx that are known to cause flares. You can at least avoid those ones. However any abx can technically cause a flare, especially the more broad spectrum ones. Do they know what infection is causing your pneumonia? If they can get very specific with the antibiotic, then it will be less likely to wipe out everything.