Antimicrobials, antibiotics, antibacterial medications used in the treatment and prevention of the diseases caused by bacterial infections. Antibiotics are not active against viruses like the common cold or influenza and their unsuitable use permits the rise of resistant organisms. A group of drugs are used to treat infections caused by microorganisms/microbes/germs. The parasite is a kind of microbe that requires to live on or in alternative living being (host). Antibiotics can be taken in various ways like mouth as liquids, tablets, capsules and they can be given by injection. An antimicrobial may be semisynthetic or synthetic which kills or control the development of microorganisms but causes slight or no injuries to the host. Wholly antibiotics are antimicrobials, nevertheless antimicrobials are antibiotics.