I'm not saying that they can't be used. They can. People often take new(ish) tech as a cure-all. There are still challenges though. For bacteria with high res

I'm not saying that they can't be used. They can. People often take new(ish) tech as a cure-all. There are still challenges though. For bacteria with high resistance (which is what we have the biggest issue with), we've typically done a workup of the bacterium to target. In the worst case, these are what land people in the hospital. Hospital settings would be the best administration point for these therapies. The problem would still be the creation of the specific phages in a reasonable fashion. This would only really be available at major hospitals in major cities. And so... limited in usage. I could see major hospitals keeping a large amount of gonococcal phages on hand though. Edit:: One more thing. As far as antibiotic allergies (you mentioned beta lactams) we typically have antibiotic alternatives. Doxycycline is pretty much well tolerated by everyone. And it's available in pill form.