Hi ekreuger,
Many people have done just fine on oral abx only, some with just Minocin. Others have done well on oral combination abx. The standard IV protocol is Clindamycin and you're right, not all AP doctors are comfortable prescribing the IVs so that narrows the list. The IVs are a wonderful tool and may be worth pursuing, and for sure, it is an aggressive jump start to the protocol. A reasonable schedule for RA patients would be a series every 6 months, but each doctor has their own preference.
Personally, I was on oral abx for a year before I had the IVs. Everything I've done has helped, but it is an exercise in patience because nothing happens quickly enough.
If you'd like a list of AP docs we'd be happy to send it to you in a PM, just let us know your state.
Take care…..kim