It's not perfect I believe, because you create resistance and dysbiosis. They see that people with crohn have a very different gut flora when they have inflammation, when the inflammation subsides the gut flora changes again (Faecalibacterium prausnitzii is much less in ppl with crohn, no commercial probiotic for that, I don't know why), antibiotic messes it up more. Antibiotics is not a one time thing, they need to stay on antibiotics their whole life. I don't know if it's because the antibiotic targets MAP or AIEC or because like someone said, it's broad range protection again bacteria penetrating the gut wall. If MAP is a dead antigen response, he suggested broad range antibiotic but while using lactic acid probiotics to keep gut flora in balance. Antibiotic have bad side effects just like other things, like resistance and dysbiosis and chance of C difficile. TNF blocker are a form of antibiotic against AIEC and MAP because they cause apoptosis. When my medication does not work anymore I will consider antibiotic.