Antibiotics are a very contested term in the field of pharmacology, and many myths surround them, a lot of which many of us believe them too. Are you ready to let go of the ones you believe in?
First: If I take the antibiotics correctly, resistance will not be caused.
Resistance of bacteria is caused by natural selection: they have had to protect their survival from different chemical substances and they grown resistance mechanisms that are almost impossible for normal antibiotics to overcome. It has nothing to do with how you take them.
Second: Our bodies become resistant to the antibiotics, not the bacteria.
Very sorry to say this, but it is the bacteria. Our bodies cannot do anything to stop this resistance, as it is not a matter of the body itself but of the bacteria that live within it.
Third: When I start to feel better, I can stop taking antibiotics.
Very false. However, because of the incorrect use of antibiotics in general, it depends on why you are taking them: if you are taking them for a virus, which is the wrong reason to, then the sooner you stop them, the better.
If you are taking them to battle a bacterial infection, then it is vital that you take the whole course prescribed, with the correct time-schedule: we start feeling better before the bacteria have been neutralized, so stopping the antibiotics allows them to start replicating again.