Why are doctors concerned about the overuse of antibiotics?

The importance of the antibiotics is undisputed. Most of bacterial infections are treated with the help of antibiotics. Everybody knows that these drugs are required when it's necessary to minimize some complications of disease or to prevent the spread of an infection. So it seems that there can be nothing wrong with antibiotics. But nowadays the effectiveness of the standard treatments for infections tends to decrease.

What's the matter?

The thing is that more and more people seem to develop antibiotic resistance (actually, these are bacteria that become resistant). This deviation turns out to be a result of the overuse/misuse of the prescribed drugs. Sometimes antibiotics don't work at all! That's why every doctor should do his or her best in order to ensure proper use of antibiotics.