If the physician, physician’s assistant, or nurse practitioner does prescribe antibiotics, take them all. Often, you’ll start to feel better within a day or two of beginning your antibiotic regimen and you might be tempted to stop taking them. Don’t do it.
Even though you feel better, the antibiotics haven’t killed all the bacteria yet. If you stop, the bacteria that had successfully survived the first few days of antibiotics will reproduce. These are the stronger bacteria, and their offspring will be much more resistant to that antibiotic.