What are antibiotics?
Antibiotics are important medicines as help fight infections caused by bacteria. However, bacteria ways to resist antibiotics, so that they no longer work. The more we use antibiotics, the less effective they become, so we use them carefully.

How to use antibiotics carefully.
Basically, don't take them you don't need them. If you have a virus antibiotics won't work. Since viruses can cause all colds and most sore throats and coughs you should ask chemist for advice rather than take antibiotics.

When are antibiotics and answer?
Your doctor prescribe antibiotics when you need them, for example, for pneumonia. Remember, if you only antibiotics when necessary, they are more likely to work when you really need .