I'm pro antibiotics, and take them when I need them.
They don't seem to have an effect on my UC one way or the other..
Ampicillin (gave me diarrhea), I haven't taken that in over 30 years, however.
My faves are amoxicillin, Clavulin and zithromax...work like a charm.
I must add that I do take probiotics and have with taking antibiotics for almost 15 years.