I can think of one very common reason to take antibiotics: strep throat. Untreated, it can resolve itself, but strep has a nasty affinity for your heart valves. Ever heard of rhuematic fever? That's the stuff, gets into your heart valves and causes scarring, etc. even after all overt symptoms of the disease are gone. Not good if you plan on living a normal lifespan.
My advice...take the antibiotics the doctor prescribes, ALL OF THEM as directed. Resistance occurs when people quit taking their antibiotics as soon as they feel better.
those who consume anti-biotics still need to restore their immune system & the herbals do it best by far.