Earlier quoted context omitted.
This is one of my biggest gripes with the American medical system. Every physician is entitled to act like it's his duty to play global health director rather than attending physician. Pro-tip: take a trip to central or south America, and buy over-the-counter antibiotics from a farmacia for pennies on the dollar. Source: I inherited this wisdom from Kari Mullis, Nobel prize winning inventor of PCR.
Kary Mullis has some really weird beliefs, such as astrology and HIV denial. His work on PCR was brilliant but I wouldn't take medical advice from him. That said, I think long-term antibiotics are appropriate if they help with symptoms. My dad developed an autoimmune reaction from long-term doxycycline though, so please do check in with your care team if you go the Farmacia route, at least for labwork.
I fear that risk over the risk of e.g. a 10-day course that is routinely taken prophylactically around the world.